You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am George Lewis. Due to some weather problems I need to cancel my recent reservation, Can you please help me with that?

ASSISTANT: Sure, please wait for a minute I will revert to you with current status.

USER: Sure.

ASSISTANT: There is no reservation found with your name.

USER: Ok, no problem. Thanks for your valuable information.

ASSISTANT: Thank you for choosing our service.