Answer: See below.
Step-by-step explanation:
Wow, before I even begin, I was wondering.. Did you write that yourself? If so, amazing imagery. I'd like to give you some tips on writing this rather than writing the narrative for you.
To start this off, you have a clear and concise beginning. The beginning is flexible, meaning that any scenario can be fathomed and created. Maybe she was running from the cops? Maybe her ex-lover was chasing after her?
This is how I'd continue it (ironic, but oh well.)
"A man dressed in wrinkled clothes and a worried expression ran after the girl's cab. He looked frantic, like he needed the cab driver to stop and wait for him. The girl looked at the cab driver and hesitated. 'Step on the gas. Now.' The man whipped his head back at the girl. The look on her face was also worried. Obeying the girl, he floored the pedal."
Of course, I'd add more, but you get the idea.
Make sure to proofread your text and be creative. You can do it! :)