You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Can you help me to change my reservation?

ASSISTANT: Sure, may I know your name please?

USER: I am Amanda Adams.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for your time, there is no active reservation found in your name.

USER: No issues, thank you for checking.

ASSISTANT: Thank you for choosing us.