You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: My business meeting venue got changed to Los Angeles, I want to change my reservation. Can you please help me with changing?

ASSISTANT: Ok, may I Know your name, please?

USER: I am Linda Wilson.

ASSISTANT: Sorry, Linda Wilson. We could not found any reservations.

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

ASSISTANT: Thanks for approaching us. have a great day.