You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Nancy Evans here.

ASSISTANT: How can I hand helping to you?

USER: I need your help in booking of a flight ticket from DCA to DFW for an important business meeting, can you please help me out with booking of a flight ticket on those locations?

ASSISTANT: Sure, I am oblige to help you. Can I have your dates please.

USER: Thank you. I am planning to move on 03/05 and please book my return ticket on 03/07.

ASSISTANT: Please give me a moment.

USER: Ok, take your time.

ASSISTANT: I found a flight with a fare of 100 and there is a 1 halt in your journey and the flight number is 1007 in AA airlines, shall I proceed with ticket booking?

USER: That's fine for me, you can proceed with booking.

ASSISTANT: Ok, the ticket booking is done.

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

ASSISTANT: You are most welcome.