The answers are in bold and underlined in the text.
- Le buscaré (Buscarnos) un asiento en primera clase.
- Le daré (Darnos) la tarjeta de embarque.
- No lleve (No llevar) mucho dinero en efectivo.
- Le explicaré (Explicarme) dónde está el control de seguridad.
- Le dire (Decirle) a la asistente de vuelo que quiero más agua.
- Facture (Facturar) el equipaje si sus maletas son grandes.
- Quitese (Quitarse) los zapatos antes de pasar por seguridad.

Translation of sentences from Spanish to English.
- I will find you a seat in first class.
- I will give you the boarding pass.
- Don't carry a lot of cash.
- I will explain where the security control is.
- I will tell the flight attendant that I want more water.
- Check luggage if your bags are large.
- Take off your shoes before going through security.
Step-by-step explanation:
Singular formal mandates, also known as singular formal imperatives, are grammatical structures used in Spanish to respectfully and politely give instructions, orders, or make requests to a single person. They are used when addressing someone to whom we must show courtesy, such as an authority figure, a client, a teacher, an elderly person, or someone who deserves more formal treatment.
To form singular formal commands, the third person singular of the verb is used in the imperative mood. The ending of the verbs in this form is different from that of the present indicative.