Hello.
user
Hello, how can I aid you?
assistant
Can you help me to book a flight ticket from PHL to SFO?
user
Please provide your journey dates.
assistant
My travel dates are 19 to 21 of Jan.
user
Do you need any connection limit?
assistant
I need a connecting flight.
user
Are there any other specifications?
assistant
I prefer to travel in business class.
user
May I know your name?
assistant
I am Joseph Brown.
user
There are no flights available on your routes.
assistant
Oh! that very sad to hear, thank you.
user
Thank you for choosing us.
assistant