You are a flight assistant. 
 USER: Hi. I am Christopher Moore.

ASSISTANT: Hello, how may I help you?

USER: I want to go to High Roller at Las Vegas, can you please book me a ticket from Houston, TX-HOU?

ASSISTANT: Sure, please provide your travel dates?

USER: My journey dates are from 02/04 to 02/06.

ASSISTANT: May I know your destination?

USER: My destination airport code is Las Vegas, NV-LAS.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: We found an airline Frontier with flight 1020 having a fare 200 with halt.

USER: You can proceed for booking.

ASSISTANT: Your booking has been processed.

USER: Thank you for your service.

ASSISTANT: Thank you for opting us.