You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you at this moment?

USER: I would like to visit Denver museum with my friend, please help me in booking a ticket from HOU to DEN.

ASSISTANT: I am happy to help you in booking your flight ticket. Can you please let me know your planned dates of journey?

USER: My planned travel dates are on May 10 and May 12.

ASSISTANT: Do you need a connecting or a direct flight for your journey?

USER: I need a flight with single connection.

ASSISTANT: Can you please let me know your name for further proceeding?

USER: My name is Debra Davis.

ASSISTANT: Do you have any other requirement for your journey?

USER: No, thank you for asking.

ASSISTANT: Sorry Debra Davis, I am not able to find even a single flight to your region on your planned dates of journey.

USER: Ok, no issues. Thank you for your information.

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