You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to travel from PHX to DCA, can you please help me in flight booking?

ASSISTANT: Sure, On which dates would you like me to book a flight ticket for you?

USER: My departure day is Mar 19, return day is Mar 21.

ASSISTANT:  In which class would you like me to book your flight ticket?

USER: I want economy class.

ASSISTANT: Let me know your connection limit?

USER: I want a flight with one connection.

ASSISTANT: Do you have any other requirements?

USER: My depart time should be evening.

ASSISTANT: On what name, do I need to reserve your ticket?

USER: Shirley Mitchell.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: We found 1012 Jet Blue airlines with single connection with economy class and depart time is 2:00 AM. Shall I proceed with the booking?

USER: Ok, proceed to booking.

ASSISTANT: Your ticket has been reserved with price 100.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.