Hello.
user
Hello, how may I assist you?
assistant
I am Timothy Mitchell. I want to travel from IAH to LAS. Can you help me in booking a flight ticket?
user
Sure, may I know your travel dates?
assistant
I would like to travel in the flight on June 28 and June 30.
user
Do you prefer economy or business class?
assistant
No, I don't have any preference.
user
Sorry, there is no flight on your details.
assistant
That's ok. Anyways, thank you.
user
Thank you.
assistant