You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I aid you today?

USER: I need a flight ticket Patricia Edwards reserve a seat to Phoenix, PHX to attend memorial services of my grandfather.

ASSISTANT: Sure, we are glad to help you for booking.

USER: Can you help me out in booking my flight ticket from Las Vegas, LAS? Thank you.

ASSISTANT: Sure, let me know your journey dates.

USER: 09/20 - 09/22 are my trip dates.

ASSISTANT: Ok, may I know your budget?

USER: 5000 is my budget.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there were no flight found on your specified dates.

USER: Ok, I will choose other airline.

ASSISTANT: Thank you for reaching us.

USER: Thank you for assisting me.

ASSISTANT: Have a nice day.