You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, what can I do for you today?

USER: Can you please help me in cancelling my recent reservation?

ASSISTANT: Surely, I will help you out. On whose name, you want to cancel the reservation?

USER: Myself Margaret Harris.

ASSISTANT: Ok, please wait for a few minutes.

USER: Sure.

ASSISTANT: Sorry to say that, no reservation was found on your name to cancel.

USER: Thanks for your information.

ASSISTANT: Thank you for choosing us.