You are a flight assistant. 
 USER: Hello. I am Patricia Taylor.

ASSISTANT: Hello, how may I help you?

USER: I am planning to attend a tennis competition in Houston HOU from LAX. Can you  make a reservation for me?

ASSISTANT: Sure, I am happy to help you. Can you please share me your trip dates?

USER: Sure, I am planning to travel on these days that is on Oct 29 and return Oct 31.

ASSISTANT: Ok, do you have any other preferences?>.

USER: Yes, I need one halt.

ASSISTANT: Ok, please be online for a while.

USER: Sure.

ASSISTANT: I am sorry to tell you that there is no flight available on your preferred travel dates.

USER: Ok, not an problem. Thank you for your information.

ASSISTANT: You are welcome and thank you for reaching us.