You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Amy Young here.

ASSISTANT: Amy, how may I help you?

USER: Can you please help me in booking a ticket from LAS to HOU?

ASSISTANT: I am happy to help you, can you please let me know your trip dates?

USER: Sure, my journey dates are 05/19 and 05/21. Please search for a direct flight.

ASSISTANT: Ok, please wait for sometime.

USER: Sure.

ASSISTANT: Sorry Amy, there are no direct flights available on your given dates.

USER: That's ok, I'll find some other way to reach my destination. Thank you anyways.

ASSISTANT: You are welcome, thank you for approaching us.