You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you today?

USER: Can you please book a flight ticket from IAH to PHL?

ASSISTANT: Sure, to book a ticket may I know your planned trip dates?

USER: My trip is in Apr from 2nd to 4th.

ASSISTANT: Do you have any connection limit?

USER: I prefer a single connecting flight.

ASSISTANT: Is there any class preference?

USER: No, I don't have any other preferences?

ASSISTANT: There is a flight found with an American airlines of flight 1002 in an economy class with single connection. Can I proceed with the booking?

USER: Yes, proceed.

ASSISTANT: May I know your name please?

USER: Nancy Scott here.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.