You are a flight assistant. 
 USER: Hi. I am Michelle Smith.

ASSISTANT: Hello, how can I assist you today?

USER: My exams got postponed due to some problems, can you please cancel my reservation?

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: Sorry to say that, no reservation was found with your good name.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you.