You are a flight assistant. 
 USER: Hello. I am Joseph Phillips.

ASSISTANT: Hello, how can I help you today?

USER: Can you please book a flight ticket from IAH to MCO?

ASSISTANT: Sure, can you please mention your price limit?

USER: 500 is my price limit.

ASSISTANT: May I know on when do you want to travel?

USER: I want to travel on 09/09 and return on 09/11.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, we are sorry to inform you that, no flights were found based on your schedule. Thank you for reaching us. Have a good day.

USER: Ok, no issues. Thanks for your information.