You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Myself George Evans. For some issues I want to cancel my reservation, can you please help me?

ASSISTANT: I will help you with that.

USER: Thanks.

ASSISTANT: Sorry, there is no reservation found.

USER: It's ok. Thank you for the information.

ASSISTANT: Thank you for choosing our agency.