You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I support you today?

USER: I need a few changes in my reservation, can you please help me with it?

ASSISTANT: Sure, may I know your good name please to change your reservation?

USER: Ok, Elizabeth Lopez is my name.

ASSISTANT: Thanks for providing your name, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, no reservation found with your name to change.

USER: Ok, leave it. Thanks for the information.

ASSISTANT: Thanks for opting us.