You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Will you help me in booking the flight ticket from PHX to LAS?

ASSISTANT: May I know your itinerary dates?

USER: My travelling dates are July 22 and July 24.

ASSISTANT: Do you have any specifications?

USER: I need a flight with single connection.

ASSISTANT: May I know your name?

USER: Myself Kevin Davis.

ASSISTANT: Sorry Kevin Davis, no flights are available on your route.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for reaching us.