You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I am Carolyn Lee, want to travel from DCA to PHL. Please help me in booking my ticket.

ASSISTANT: Sure, may I know your trip dates?

USER: My travelling dates are from 01/21 to 01/23.

ASSISTANT: In AA airline, there is a flight for you with 1 connection and fare is 100. Shall I proceed?

USER: Yes, please.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Most welcome.