Hello.
user
Hello. How may I aid you?
assistant
I am Thomas Turner.
user
Nice to meet you Thomas.
assistant
Can you book a flight ticket from PHL to IAD?
user
Yes, tell me your travel dates please?
assistant
My planned travel dates are Aug, 27 and Aug, 29.
user
Do you have any preferences?
assistant
I need a connecting flight and my depart time should be at evening.
user
Ok. Thanks for waiting. But I am sorry to say that there are no flights available in the evening time.
assistant
It's ok, thank you for checking.
user
Thank you.
assistant