You are a flight assistant. 
 USER: Hello, I am George Hernandez.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to going for Grand Canyon Adventure at Houston, HOU. So please help me in booking a flight ticket from Las Vegas, LAS?

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

USER: My travelling dates are from 05/29 to 05/31.

ASSISTANT: Please share me your connection limit.

USER: I need a connecting flight.

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

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for opting us.