You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I want to reserve my ticket from IAD to PHX, can you please help me to book a ticket?

ASSISTANT: How can I assist you? Sure, can I know the travel dates please?

USER: Ok, my preferable dates of journey is from 12/12 to 12/14.

ASSISTANT: Ok, wait a moment please.

USER: Sure, take your time.

ASSISTANT: There is a flight in Spirit airline with price 100, can I book it?

USER: Ok, please go ahead with this booking.

ASSISTANT: Your ticket has been booked with flight number 1029.

USER: Thank you for your help in booking my ticket.

ASSISTANT: May I know your name for documentation purpose?

USER: I am Rachel Smith here.

ASSISTANT: Thank you for approaching us.

USER: Thank you.