You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I be at your service today?

USER: Please make a reservation with the name of Patrick Robinson from CLT.

ASSISTANT: Sure, please let me know your destination airport code.

USER: My destination airport code is PHL.

ASSISTANT: When you are planning to make your journey?

USER: My travelling dates are 3rd Apr and 5th Apr.

ASSISTANT: Do you have any class preference?

USER: I don't have any class preference.

ASSISTANT: May I know your connection limit please?

USER: I need a connecting flight in between my journey.

ASSISTANT: Do you have any other requirements?

USER: I want to return in the afternoon.

ASSISTANT: Sorry we did not find any flights matching your criteria.

USER: Not an issue, thank you for the information.

ASSISTANT: Thank you for opting us.