Hello.
user
Hello, how may I help you?
assistant
I want to book a flight from IAD to OAK to visit Comic-Con. Can you help me with booking?
user
Sure, may I know your name?
assistant
My name is Anthony Phillips.
user
Can I know your travelling dates?
assistant
I will fly on Jan 29 and return on Jan 31.
user
Do you have any other specifications?
assistant
I need direct flight and normal cost airline.
user
May I know your class preference?
assistant
I am fine with any class.
user
Ok, wait a minute.
assistant
Sure.
user
Sorry, there are no flights available on your request.
assistant
Ok, thank you for the information.
user
Thank you for choosing us.
assistant