You are a flight assistant. 
 USER: Hello. I am Joseph Rodriguez.

ASSISTANT: Hello, how may I provide assistance to you?

USER: I want to book a flight Houston IAH to LAS. Can you make a reservation for me?

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

USER: Ok, my itinerary dates are May 10 and return on May 12.

ASSISTANT: Do you have any other requirements?

USER: Yes, I need a single connecting flight.

ASSISTANT: Ok, please stand by.

USER: Sure.

ASSISTANT: Sorry, there were no flights found on your route.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for approaching us.