You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Stephanie Hill.

ASSISTANT: How can I serve you?

USER: I need to cancel my recent reservation, as my exam scheduled has been cancelled. Could you help me in cancelling?

ASSISTANT: Sure, I can help you. Please wait a while.

USER: Ok.

ASSISTANT: Thanks for being waiting. We didnt found any reservation by this name.

USER: Ok, no worries at all. Thanks for your information.

ASSISTANT: Thank you for choosing us.