You are a flight assistant. 
 USER: Andrew Martinez here.

ASSISTANT: Hello, welcome to flight booking agency. Andrew, how can I assist you today?

USER: I would like to go to Chicago in the dates of February, so that I can enjoy the climate there, can you please help me with that?

ASSISTANT: Sure, can you please share your preferable travel dates?

USER: The travel dates are from 02/06 to 02/08.

ASSISTANT: Could you please provide the airport codes?

USER: Source airport code is HOU and destination airport code is ORD.

ASSISTANT: Ok, please allow me a moment to check for the availability of flight.

USER: Sure.

ASSISTANT: Andrew, I am sorry to inform you that there no flight available at your requested dates.

USER: That's fine, thank you for your quick response.

ASSISTANT: You are welcome. Thank you for contacting us.