You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Myself David Carter, I need to schedule my trip to Washington. Could you please help me in booking the ticket from PHX to DCA?

ASSISTANT: Sure, I am glad to help you. May I know your travel dates?

USER: I will take-off 07/10 and again I will be return back on 07/12.

ASSISTANT: Ok, please wait for a while.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for your patience. Here, there is a connecting flight available and airfare is about 100 only, can I proceed further in booking?

USER: Yes, I think that can work for me.

ASSISTANT: Your ticket has been reserved for the flight 1010 in Southwest airlines.

USER: Thank you very much for booking the ticket.

ASSISTANT: Thank you for approaching us.