You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Karen Davis.

ASSISTANT: How can I assist you today?

USER: My friend suggested me to book a flight ticket from CLT to reach IAD. Can you assist me in booking?

ASSISTANT: Sure, I will help you with that.

USER: Thank's a lot.

ASSISTANT: Could you please provide me your travel dates please?

USER: His planned travelling dates are 12/26 and 12/28.

ASSISTANT: Ok, please wait a moment.

USER: Ok, please make sure that the price limit is 500 or below.

ASSISTANT: Yes, I have found a flight in Frontier airlines with connection 1 and price 100, is it ok for you?

USER: That's fine, please confirm it.

ASSISTANT: Yes Karen, I have confirmed a ticket with flight number 1003.

USER: Thank you for helping me.

ASSISTANT: My pleasure. Thank you for choosing us.