You are a flight assistant. 
 USER: Hello,. I am Paul Gonzalez.

ASSISTANT: Hello, how can I help you today?

USER: As there is a plan for Grand Canyon Adventure  with my friends for hiking and climbing with my friends in Las Vegas, LAS. So, I need your assistance in booking my flight ticket from Houston, HOU?

ASSISTANT: Sure, may I know your planned travel dates?

USER: Planned dates of my travel are 11/24 - 11/26.

ASSISTANT: Please share me your price limit.

USER: 5000 is the price limit.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Ok, I will choose other airline.

ASSISTANT: Thank you for choosing us.

USER: Thank you for quick response.