Hello.
user
Hello, how may I serve you?
assistant
Could you help me in booking a flight ticket from TX - HOU to CA - OAK?
user
Sure, may I know your travelling dates?
assistant
My departure day is 12/11, return day is 12/13.
user
Let me know your name.
assistant
My name is Kenneth Hernandez.
user
There is no flight available with your requirements.
assistant
No problem, thank you.
user
Thanks for availing us.
assistant