You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I am James Phillips. I am planning to travel from HOU to IAH, can you help in booking a flight?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates to proceed further?

USER: My travelling dates are 10/02 to 10/04.

ASSISTANT: Ok, please be on hold for a moment.

USER: Ok.

ASSISTANT: Sorry for the inconvenience, there are no flights available for you in this route as per your requested travelling details.

USER: That's ok, thank you.

ASSISTANT: Thank you for choosing us.