You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, May I know, how can I best assist you now?

USER: I am Gary Carter.

ASSISTANT: Ok.

USER: I need to book a flight ticket from LAS to ORD, Can you please help me for booking?

ASSISTANT: Sure, may I know your price limit?

USER: I can pay up to 200.

ASSISTANT: Could I have your travelling dates?

USER: I would like to travel on 03/19 to 03/21.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: We found a flight in Frontier airline of flight number 1026 with a fare 100. Shall I proceed for booking?

USER: Ok, proceed for booking.

ASSISTANT: Your booking has been confirmed with a halt.

USER: Thanks for your information.

ASSISTANT: Thank you for choosing us.