You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: I have to cancel my flight ticket booking due to storm effect in that region, can you please help me in cancellation process?

ASSISTANT: I am here to help you, please mention your name to check your reservation.

USER: Sure, you can check my reservation on the name of Raymond Rodriguez.

ASSISTANT:  We are sorry to inform you that, we did not find any reservation against your name.

USER: Ok, no problem. Thanks for your service.

ASSISTANT: Thanks for contacting us, have a nice day.