You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Mary Jackson here.

ASSISTANT: How may I guide you today?

USER: I would like to cancel my reservation as my exams cancelled, can you please help me out with that?

ASSISTANT: Sure, please wait for a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, we couldn't find any reservation on your name in our records.

USER: That's ok, no problem. Anyway thank you for the information.

ASSISTANT: Thank you for reaching us.