You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

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

ASSISTANT: Yes, can you share me your name?

USER: I am Larry Brown.

ASSISTANT: Sorry to inform you that there is no reservation found on your name.

USER: Ok, no problem. Thankyou.

ASSISTANT: Thank you for contacting us.