You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Is this flight booking agency?

ASSISTANT: Yes, it is a flight booking agency, how can I help you?

USER: I'm Jessica Lewis.

ASSISTANT: Ok.

USER: I have planned to visit South Mountain Park at Phoenix, could you please help me with booking a flight ticket from LAS to PHX?

ASSISTANT: Sure, I will help you in booking the flight ticket. May I know the travelling dates please?

USER: I would like to take off on 05/14 and return on 05/16.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry Jessica, there are no flights found on your request.

USER: That's ok, I will search for an another alternate way to complete my trip.

ASSISTANT: Ok, thank you for reaching us.

USER: You are welcome.

ASSISTANT: Have a great day.