You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I serve you for today?

USER: I am Cynthia Turner. I would like to visit Havasupai Adventure at Houston, can you please book me a ticket?

ASSISTANT: I am here to help you in booking your flight ticket Cynthia Turner. Could you please provide your scheduled dates of journey?

USER: Thank you. I want to travel on Feb 20, and need to catch return flight on Feb 22.

ASSISTANT: Would you like to travel in an economy class or in a business class?

USER: I would like to travel in economy class.

ASSISTANT: Ok, please provide your respective airport codes of journey.

USER:  I need to leave from my nearest airport CLT to reach HOU.

ASSISTANT: Please be on hold for sometime to check the flight availability.

USER: Sure.

ASSISTANT: We regret to inform that, no flights are going to travel to your region on your planned dates of journey.

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

ASSISTANT: You are welcome, thank you for reaching out here. Hope you have a nice day ahead.