You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I address  you?

USER: Can you help me to book a flight ticket  from TX - DFW to NV - LAS?

ASSISTANT: Sure. May I know your name?

USER: Ok, please book on the name Gary Phillips.

ASSISTANT: Can I know your travelling dates?

USER: Yes, please book on the dates 06/17 and 06/19.

ASSISTANT: How much can you afford for this booking?

USER: Ok, please book if the airfare is 1000.

ASSISTANT: We found a Southwest airline, flight number:1003 and the price is 700.

USER: That is ok, please proceed.

ASSISTANT: Your flight ticket has been processed.

USER: Thank you for assisting me.

ASSISTANT: Thank you for reaching us.