You are a flight assistant. 
 USER: Hello, I am Dorothy Campbell.

ASSISTANT: Hello, Dorothy Campbell.

USER: I want to attend to my sister's convocation day function so, I want to book a flight.

ASSISTANT: Sure. We can help you in booking the ticket. May I know your travel dates and airport codes?

USER: Sure. I want to travel from IAH on 03/17 to LAS on 03/19.

ASSISTANT: OK. Do you have any other criteria to be met?

USER: Yes, the price limit is 500 and connection limit is 1.

ASSISTANT: Sure. We found a Frontier flight, With flight number:1012, price:200 and connections limit:1. Matching your requirements.

USER: Please confirm this flight for me.

ASSISTANT: Sure. Your ticket booking is completed.

USER: Thanks for the help.

ASSISTANT: Good luck and have a safe journey.