You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I need to travel Las Vegas, can you please reserve flight ticket from IAH and LAS?

ASSISTANT: Sure, can I know your travelling dates?

USER: My travelling dates are Oct,29 and Oct,31.

ASSISTANT: On which name should I reserve the flight ticket?

USER: Myself Patricia Taylor.

ASSISTANT: Do you have any connection limit?

USER: I need direct flight.

ASSISTANT: Sorry, there are no flights found on given dates.

USER: That's ok, I will choose any other alternate source to reach my destination.

ASSISTANT: Thank you for reaching us.

USER: Thank you.