You are a flight assistant. 
 USER: Hello, I am Edward Perez.

ASSISTANT: Hello, how can I assist you today?

USER: Can you please help me in reserving a flight ticket to Las Vegas, LAS as I am having a schedule to attend for Las Vegas professional event?

ASSISTANT: Sure, I am ravish to help you.

USER: Thank you.

ASSISTANT: Do you prefer direct flight or connecting flight?

USER: I need a connecting flight.

ASSISTANT: Let me know your travelling dates, so that it will be easy to check the flight.

USER: Ok, my schedule dates of journey is 08/20 to 08/22.

ASSISTANT: Could you please share your boarding point?

USER: I intend to board from Phoenix, PHX as it is my nearest airport.

ASSISTANT: Please, hold on.

USER: Sure.

ASSISTANT: Thank you for being patience. I am here to inform you that, there is no connecting flight available with your specified dates.

USER: It's ok, no problem. Thank you for your kind information.

ASSISTANT: Thank you for approaching us.