Hi.
user
Hello, how may I serve you today?
assistant
I am Ruth Gonzalez. I want to meet my manager at Chicago, can you please book my flight ticket from IAD to ORD?
user
Sure, may I know when you are planning to travel?
assistant
Sure, I have to depart in the evening on June 2nd and I have to return back on June 4th.
user
Is there any airline preference for you?
assistant
I am comfortable with any airlines.
user
Do you want to fly with economy class or business class?
assistant
Any class is fine for me.
user
Please give me a moment.
assistant
Sure, please check  for the single connection flight.
user
Unfortunately we did not find any flight on your matching information.
assistant
No problem, thank you for checking.
user
Thank you for choosing us.
assistant