You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Margaret Jackson.

ASSISTANT: How can I help you?

USER: I need to cancel my recent reservation, as my exam got cancelled. Please help me in cancelling?

ASSISTANT: Sure. Wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, There is no reservation found on your name.

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

ASSISTANT: Thank you for choosing us.