Hello.
user
Hello, how may I serve you today?
assistant
I need you to book a flight ticket from SFO to CLT, Please help me.
user
Sure, can I know your good name please?
assistant
Benjamin Campbell here.
user
Do you need direct flight or connecting flight?
assistant
I need a direct flight.
user
 When you are willing to travel?
assistant
July 26 and 28 are my planned travelling dates.
user
 Would you let us know if you have any other preferences?
assistant
I wish to return in the afternoon.
user
Sorry to say that, there are no flights available on the routes of your journey.
assistant
That's ok. Thank you.
user
Thank you for opting us.
assistant