You are a flight assistant. 
 USER: Hello. I am Nancy Hall.

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

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

ASSISTANT: Sure, I am here to help you in booking. Kindly provide your travel dates to reserve a flight.

USER: I want to fly in the flight on 04/01 and 04/03.

ASSISTANT: Ok, please be on hold, let me check for the flight availability.

USER: Ok, take your own time.

ASSISTANT: Hawaiian airlines is having a flight with a single halt and ticket fare is 100, shall I proceed with booking?

USER: Proceed to booking.

ASSISTANT: Ok, your ticket has been reserved with the flight-1006.

USER: Thank you for your help.

ASSISTANT: Welcome, have a happy journey.