Final answer:
The provided text excerpts do not contain information about a character named Pam or her thoughts on Roy's potential wedding dinner, making it impossible to accurately answer the question without additional context.
Step-by-step explanation:
The question related to what Pam thinks Roy will serve for dinner at his wedding does not provide enough context within the quotes provided to determine Pam's thoughts on the wedding dinner. The provided excerpts from literature do not mention a character named Pam or her thoughts on Roy's dinner offerings at his wedding. In the context of analyzing literature, it's essential to have the complete narrative or specific details that relate to the characters mentioned in the question.