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

ASSISTANT: Hello, how can I aid you?

USER: Due to bad weather, I want to change my recent reservation. Can you help me?

ASSISTANT: Sure, we help you in changing your reservation. Please wait for a moment.

USER: Ok.

ASSISTANT: We did not found any reservation on your name.

USER: No issue, Thanks for the information.

ASSISTANT: Thank you for opting us.