You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Andrew Green.

ASSISTANT: How may I aid you?

USER: I want to travel from PHX to BOS. Can you help me to book a flight ticket?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: I want to fly in the flight on 10/16 and 10/18.

ASSISTANT: Wait a moment please.

USER: Ok.

ASSISTANT: Delta airlines is available in your route with the ticket fare of 100, shall I proceed with the booking?

USER: Proceed to booking.

ASSISTANT: Your ticket is booked with the flight-1000.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.