You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: William Evans here.

ASSISTANT: How can I aid you?

USER: I want to book a flight from PHX to EWR. Can you please help me in booking a flight?

ASSISTANT: May I know your journey dates please?

USER: My trip dates are from 05/06 to 05/08.

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

USER: Ok, please proceed.

ASSISTANT: Your ticket is booked with the flight-1006.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.