You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Michael Phillips. I want to book a flight ticket to attend for an interview in Charlotte, NC - CLT. Can you help me for booking from Denver, CO - DEN?

ASSISTANT: Sure, when are you planning to travel?

USER: My planning dates are 05/27 to 05/29.

ASSISTANT: Please provide your specifications.

USER: My price limit is 500.

ASSISTANT: Frontier airlines with single connection and price 100 of 1008 flight. Shall I proceed?

USER: Ok, you can proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thnak you.

ASSISTANT: Thank you.