Hello, I am David Campbell.
user
Hello, how can I help you today?
assistant
I would like to attend my brother wedding reception. can you please help me to book a ticket from SFO to PHL?
user
Sure, when are you willing to travel?
assistant
My travelling dates will be on 10/19 to 10/21.
user
Ok, any other requirements?
assistant
I need a direct flight.
user
Ok, please wait for a while.
assistant
Ok.
user
Thanks for waiting, no flights found with your requested details.
assistant
Not an issue, thank you.
user
Thank you for opting us.
assistant