You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you?

USER: I want to change my recent reservation as my tour got cancelled. Please help me out.

ASSISTANT: Sure, may I know your good name?

USER: I am Rebecca Young.

ASSISTANT: Thank you Rebecca, please wait a moment.

USER: Ok.

ASSISTANT: There is no reservation on your name.

USER: Ok, no issues. Thank you.

ASSISTANT: Thanks for choosing us.