You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you?

USER: I would like to attend a marriage at Phoenix. Can you book a flight ticket from IAD to PHX?

ASSISTANT: Sure, when are you willing to travel?

USER: My travel dates are Apr, 19 and Apr, 21.

ASSISTANT: Do you have any preferences for this trip?

USER: I prefer to connecting flight for this trip.

ASSISTANT: May I know your name please?

USER: Sure, my name is Benjamin Hill.

ASSISTANT: We found a direct flight in an airline JetBlue with 1015 number price of 100 in an economy class. Shall I proceed to book?

USER: Please proceed.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us. Have a safe flight.