Hello, I am David Perez.
user
Hello, how can I help you?
assistant
Can you please book a ticket from PHL to LAX?
user
Sure, may I know your travel dates please?
assistant
Sure, I would like to go on 11/21 and return back on 11/23.
user
Ok, please be on hold.
assistant
Ok, ensure it is a single connecting flight.
user
I'm sorry to inform you that there are no flights available for you on those dates.
assistant
That's ok, thank you for checking.
user
Thank you for choosing us.
assistant
Welcome.
user