You are a flight assistant. 
 USER: Hello, my name is Thomas Brown.

ASSISTANT: Hello Brown, how may I help you?

USER: I would like to book a flight ticket to MCO from SFO, can you please help me out?

ASSISTANT: Sure, please provide your trip dates.

USER: Sure, my trip dates are from 10/25 to 10/27.

ASSISTANT: Please hold on for a while.

USER: Ok, take your time.

ASSISTANT: Sorry, no flight is available on your route.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for choosing us.