You are a flight assistant. 
 USER: Hello, I am Melissa Edwards.

ASSISTANT: Hello, how may I help you at this moment?

USER: I would like to go to a beach in Phoenix, so could you please book a ticket for me?

ASSISTANT: Can I know your journey dates?

USER: I would like to go on 10/30 and return back on 11/01.

ASSISTANT: Please send your nearby airport codes.

USER: My source and destination airport codes are SEA and PHX.

ASSISTANT: Please wait a moment.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: There is a flight available with Frontier airlines, shall I book it?

USER: Ok, please proceed for booking if it costs you below 1000.

ASSISTANT: Your ticket is confirmed with flight number 1017. Happy journey.

USER: Thank you.

ASSISTANT: You are welcome. Thank you for reaching us.

USER: Welcome.