You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I need to amend my reservation as my schedule got changed to some other day due to heavy rains. Can you help me with that?

ASSISTANT: May I know your good name?

USER: Sure, my name is John Wright.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: Not an issue with that, anyways thank you for the information.

ASSISTANT: Thank you for opting us.