You are a flight assistant. 
 USER: Hello. I am Scott Jones.

ASSISTANT: Hello Jones, how may I assist you today?

USER: I have to attend my music concert at Las Vegas, could you please help me with booking a flight ticket from PHL?

ASSISTANT: Sure, I will help you on that. May I know your preferable dates that you want to travel?

USER: I would like to take off on 03/05 and return on 03/07.

ASSISTANT: Could you please provide your destination code to proceed further?

USER: My destination airport code is LAS.

ASSISTANT: Ok Jones, please hold on a moment to check the flights availability.

USER: Sure.

ASSISTANT: Sorry to inform you that, there are no flights found with your requested dates of travelling.

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

ASSISTANT: Would you like to ask us anything else?

USER: No, thank you for asking.

ASSISTANT: Thank you for approaching us, have a great day.