You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: John Edwards here.

ASSISTANT: How may I assist you?

USER: I would like to attend a business conference in Houston, can you please help me out with booking of a flight ticket to go there?

ASSISTANT: Sure, may I know your nearest source and destination airport codes please?

USER: Ok, I want to travel from HOU to IAH.

ASSISTANT: Can I have your planned trip dates please?

USER: Sure, I am planning to leave on 10/22 and please book my return ticket also on 10/24.

ASSISTANT: Please wait a moment.

USER: Ok, take your time.

ASSISTANT: I found a flight for you in AA airlines with price 200. Can I book your ticket?

USER: That's fine for me, I am ok with this. You can proceed with booking.

ASSISTANT: Ok, your booking is confirmed with flight number 1002.

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

ASSISTANT: Thank you for reaching us.

USER: Most welcome.