You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Paul Davis. I would like to go for holiday trip to Minneapolis, Can you please reserve me a flight ticket from Houston?

ASSISTANT: Sure, may I know your desired travel dates please?

USER: I am planning to depart on Feb 08 in the afternoon time  and return on Feb 10.

ASSISTANT: Please share your airport codes.

USER: My take off airport code is IAH and destination code is MSP.

ASSISTANT: Sorry to say, there is no flight on your desired travel dates.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thank you for opting us.