You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you at this moment?

USER: This side Melissa Williams. Can you please help in making a flight ticket from PHX to BOS?

ASSISTANT: Sure, can you please provide your travelling dates to proceed further?

USER: Yes, my travelling dates are 02/17 and 02/19.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Frontier airlines is available on this route with a ticket fare of 100, shall I book your ticket?

USER: I am fine with this flight, please proceed with booking.

ASSISTANT: Melissa Williams, your ticket is booked with flight number 1003.

USER: Thank you for helping me in booking a flight ticket.

ASSISTANT: Thank you, have a safe journey.