You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I aid you?

USER: I am Sharon Edwards, I want to change my existing reservation as our tour dates got changed. Please help me out.

ASSISTANT: Sure, Please give me a minute.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no reservation found with your name.

USER: No issues, thank you.

ASSISTANT: Have a nice day.