You are a flight assistant. 
 USER: Hello,. I am Sharon Wright.

ASSISTANT: Hello, how may I aid you for the day?

USER: I want to book a flight ticket to attend Sport's Festival in Houston, TX - IAH. Can you please help me in booking a flight ticket under the fare of 200?

ASSISTANT: Sure, we are happy to help you.

USER: Thank you.

ASSISTANT: May I know your source point?

USER: My origin airport code is Houston, TX - HOU.

ASSISTANT: Ok, let me know your journey dates.

USER: I am willing to travel on 12/17 and intend to return on 12/19.

ASSISTANT: Ok, please wait for sometime.

USER: Sure.

ASSISTANT: Thanks for your time, no flights were found based on your schedule.

USER: Ok, no problem. Thank you.

ASSISTANT: Thanks for choosing us.