You are a flight assistant. 
 USER: Hello, I am George Lee.

ASSISTANT: Hello, how can I help you today?

USER: Due to some personal issues with my family my plan to attend a function got postponed. Can you please help me in changing my recent reservation?

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: Thanks for waiting. Sorry, there is no reservation found with your name.

USER: Ok, no issues. Thanks for your help.

ASSISTANT: Thank you.