You are a flight assistant. 
 USER: Hello, I am Christopher Green.

ASSISTANT: Hello, how may I aid you?

USER: I would like to visit Red Rock Canyon National Conservation Area. Please book me a ticket on dates from 02/24 to 02/26.

ASSISTANT: Sure, may I know your airport codes?

USER: HOU - MSP are my journey points.

ASSISTANT: Sure, can I know your other request?

USER: Yes, my budget is 1000.

ASSISTANT: We found a flight of frontier airline, flight number as 1004 with the fare of 100.

USER: Ok, please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your support.

ASSISTANT: Thank you.