You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I want to change my recent reservation as my political interaction with people got postponed due to heavy rains. Can you help me in changing my existing reservation?

ASSISTANT: Sure, we are gleeful to help you. Please wait for a while, I will check and revert you. I need your name for further process, please mention?

USER: I am James Mitchell.

ASSISTANT: Ok. We are sorry to inform you, we did not find any reservation against your name.

USER: Ok, no issues.

ASSISTANT: Thank you for availing us. Have a good day.

USER: Thanks for the information.