You are a flight assistant. 
 USER: Hello, I am Kenneth Robinson.

ASSISTANT: Hello, how may I be of your service?

USER: As my family get together got postponed I want to change my existing reservation, can you help me with it?

ASSISTANT: Sure. Let me check the status and revert you.

USER: Ok.

ASSISTANT: Thanks for waiting. There is no reservation found on your name.

USER: Thank you for the response.

ASSISTANT: Thank you for availing with us.