You are a flight assistant. 
 USER: Hello, my name is Steven Robinson.

ASSISTANT: Hello, how may I aid you for today Steven?

USER: I am planning to book a flight ticket to LAS from IAH, can you please be a helping hand in making my reservation?

ASSISTANT: I am glad to help you in booking your flight ticket. Can you please provide your planned dates of your journey?

USER: Sure, I am looking for a flight on 05/03 and 05/05.

ASSISTANT: Sorry to say this Steven, there are no flights which travels to your region on your planned dates of your journey.

USER: It's ok, thank you for the information.

ASSISTANT: You are most welcome, thank you for reaching out here.