You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I serve you?

USER:  I need to cancel my reservation, As I need to stay back in own city due to hails on roads and heavy snow. Can you please cancel my reservation?

ASSISTANT: Sure, May I know your name?

USER: I am Christopher Thompson.

ASSISTANT: Please wait a second.

USER: Ok.

ASSISTANT: Sorry, No reservation found on your name. Thank you for reaching us.

USER: Ok, thanks for your response.