You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: Can you please help me in booking my flight ticket from IAD to PHL?

ASSISTANT: Sure, may I know your good name please?

USER: Myself Karen Garcia.

ASSISTANT: When you are willing to travel?

USER: I am willing to travel on 12/22 and want to return on 12/24.

ASSISTANT: Let me know your connection limit.

USER: I need a single connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: There is a connecting flight 1006 in American Airlines at the cost of 400 with economy class. Can I proceed for booking?

USER: Please proceed.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.