You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: Can you help me in cancellation of my reservation as my exams got cancelled?

ASSISTANT: Sure, may I know your name?

USER: Sure, my name is John Harris.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: Thank you for reaching us.