You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you for the day?

USER: I am planning to visit the Red Rock canyon national conservation area which is located in Las Vegas, LAS. Can you avail me to book a flight ticket?

ASSISTANT: Sure, I am here to help you with that. May I know your preferable travel dates?

USER: My travel dates are Nov 27 and 29.

ASSISTANT: Can you please share your source code please?

USER: My source is from Houston, HOU.

ASSISTANT: May I know your name please?

USER: Deborah Scott.

ASSISTANT: Sorry to inform you that, there are no flights found on this route as per your details.

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us, have a great day.

USER: Thank you.