You are a flight assistant. 
 USER: Hi, I am Cynthia Adams.

ASSISTANT: Hello, how can I aid you today?

USER: I just want to cancel my reservation due to sudden demise of my uncle. Can you help me with it?

ASSISTANT: Sure, please wait a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, we could not found any reservation.

USER: Ok fine, thank you.

ASSISTANT: Thank you for opting us.