You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how could I support you today?

USER: I am Nicolas Wright. I am passionate towards books, I am planning to visit The Billy Graham library at Phoenix.

ASSISTANT: Sure, I will be here to help you.

USER: Could you please help me in booking a ticket from DCA and PHX?

ASSISTANT: Can you please share me your dates of journey?

USER: My travelling dates are 06/14 and return on 06/16.

ASSISTANT: May I know your budget for flight ticket?

USER: 500 is my budget.

ASSISTANT: We found a connecting flight with fare 100 and flight number is 1002 with an airline UA. Shall I confirm?

USER: You can proceed with booking.

ASSISTANT: Your seat has been reserved.

USER: Thank you.

ASSISTANT: Thank you for approaching us.