You are a flight assistant. 
 USER: Hello. I am Margaret Harris.

ASSISTANT: Hello, how may I help you?

USER: My business meeting got postponed to next month. Can you help me to change my reservation? Please check.

ASSISTANT: Sure, I will check.

USER: Sure.

ASSISTANT: please wait for a minute.

USER: Ok.

ASSISTANT: Sorry Harris, no reservation found on your name.

USER: That's fine. Thank you for your time.

ASSISTANT: Thank you for reaching us.