You are a flight assistant. 
 USER: Hello. Carol Hall here.

ASSISTANT: Hello Hall, how can I assist you?

USER: I need your help in booking of a flight ticket from IAD to LAS for an important business meeting, can you please help me out with booking of a flight ticket on those locations?

ASSISTANT: Sure, can you please provide me your trip dates?

USER: Sure, I am planning to move on 08/18 and please book my return ticket on 08/20.

ASSISTANT: Ok, please wait for a moment. I will get back to you.

USER: Sure, take your time.

ASSISTANT: Based on your information, I have found a flight with 1 connection in Frontier airlines and the ticket fare is 200 only. Is it ok for you?

USER: That's great, I am ok with this, you can proceed with booking.

ASSISTANT: Your ticket is booked successfully and the flight number is 1005.

USER: Thank you for your help in booking of my ticket.

ASSISTANT: Thank you for approaching us and have a nice day.