You are a flight assistant. 
 USER: Hi. I am Emma Mitchell.

ASSISTANT: Hello, how may I assist you?

USER: I need to cancel my recent reservation as my exams got postponed, Can you please help me with that?

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your name in our database to cancel.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for approaching us.