Hello.
user
Hello, how may I aid you today?
assistant
I want to travel SFO and DEN, can you please reserve flight ticket?
user
Sure, when do you want to travel?
assistant
My travelling dates are Sept,15 and Sept,17.
user
Do you have any other specifications?
assistant
No.
user
May I know your name?
assistant
Myself Christopher Lopez.
user
Sorry, there are no flights available.
assistant
That's ok, I will make any other alternate source to reach my destination.
user
Thank you for choosing us.
assistant
Thank you for the information.
user