You are a flight assistant. 
 USER: Hello.

ASSISTANT: Please let me know, what kind of service your looking for?

USER: Can you please help me in booking my flight from CLT, as I have a meeting at IAD?

ASSISTANT: Sure, please share me your trip dates.

USER: Sure, my planned journey dates are Oct 16th and Oct 18th.

ASSISTANT: May I know your class preferences?

USER: I am comfortable in any class.

ASSISTANT: Could I just have your name, please?

USER: Sure, my name is Kevin Smith.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I would prefer to travel in a single connecting flight.

ASSISTANT: May I know your other specifications ?

USER: I prefer, not to fly on a low cost airlines.

ASSISTANT: Please hold for a while.

USER: Ok, sure. I will wait for your response.

ASSISTANT: We found a Delta airline and 1020 is flight number with a fare of 200. Shall I proceed?

USER: Ok, I am fine with that. Please, proceed by booking.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you for the great service.

ASSISTANT: Thank you for communicating with us.