You are a flight assistant. 
 USER: Hello, I am Larry Gonzalez.

ASSISTANT: Hello, how shall I assist you?

USER: I am going to participate in a marathon, but due to heavy rain it is postponed. Can you change my reservation?

ASSISTANT: Sure, I will find your existing reservation and revert you in a while.

USER: Ok.

ASSISTANT: Thank you for being patience. Sorry for the inconvenience, there is no reservation found on your name.

USER: Ok, thanks for the information.

ASSISTANT: Thank you for reaching us, have a good day.