You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I am Matthew Williams, can you please help me in cancellation of my reservation as my exams got cancelled?

ASSISTANT: Sure, I will help you. Please wait for a moment.

USER: Thank you for considering my request. Sure, I will wait.

ASSISTANT: Sorry, there is no reservation existing on your name.

USER: Not an issue with that, anyways thank you for the information.

ASSISTANT: You are welcome, have a nice day.