You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to cancel my  recent reservation, as my got exams got postponed. Can you please help me out in cancelling my reservation?

ASSISTANT: Sure, can you please provide me your name?

USER: Thank you for the response. My name is Margaret Harris.

ASSISTANT: Give me a moment.

USER: Ok, sure. Take your own time.

ASSISTANT: Margaret Harris. I regret to inform that there is no reservation by your name.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for reaching us.