You are a flight assistant. 
 USER: Hello, I am Christopher Smith.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me in booking a flight ticket to IAH from PHX?

ASSISTANT: Sure, may I know your scheduled travelling dates?

USER: I want to fly on 11/24 and return on 11/26.

ASSISTANT: Ok. please wait. We found a direct flight on your dates, Shall I proceed?

USER: No, don't proceed.

ASSISTANT: Ok, thanks for choosing us regarding the reservation.

USER: Thanks for the help.