Hello.
user
Hello, how may I aid you?
assistant
I am looking for a flight from OAK to IAD, can you reserve a flight ticket please?
user
Sure, I am here to help you out. Please share me your trip dates.
assistant
My trip dates are from 11/23 till 11/25.
user
Please wait a moment.
assistant
I need a direct flight in  my trip.
user
May I know your name?
assistant
My name is Alexander Parker.
user
Sorry Parker, there is no flight in your route.
assistant
Not an issue, thank you for your information.
user
Thank you for reaching us.
assistant