You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, may I know your good name?

USER: I am Kathleen Allen and I want to cancel my recent reservation due to my robotics workshop got postponed.

ASSISTANT: Ok. Please wait a moment.

USER: Ok.

ASSISTANT: We found that there is no reservation with your name.

USER: Thank you for your service.

ASSISTANT: Thank you for opting us.