You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I want to book a flight from Denver to meet my friend at Detroit. Can you help me with booking?

ASSISTANT: Sure, may I know your name please?

USER: My name is Feb 15 and return on Feb 17.

ASSISTANT: Please mention your name.

USER: My name is Catherine Thomas.

ASSISTANT: Ok, may I know your travelling airport code please?

USER: My source point is DEN and destination is DTW.

ASSISTANT: May I know your class preference please?

USER: I want a economy class.

ASSISTANT: May I know your connection limit please?

USER: I prefer a connecting flight.

ASSISTANT: Do you have any other specifications please?

USER: No.

ASSISTANT: There is a connecting of fare 100 with economy class in United airline, shall I proceed for booking?

USER: Please proceed with booking.

ASSISTANT: Your ticket has been confirmed with flight number 1006.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us.