You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I amend you today?

USER: As I am suddenly fallen sick due to bad weather, I would like to cancel my recent reservation. Can you please cancel my reservation?

ASSISTANT: Sure, we are here to hep you. Can I have your good name to check your reservation?

USER: Thank you. Sure, I am Gregory Brown.

ASSISTANT: Please wait for a while, I will check the reservation list and revert to you.

USER: Sure.

ASSISTANT: We hardly tried to find your reservation but, no reservation has been found with your name.

USER: Ok. Thank you for providing information.

ASSISTANT: Thank you for connecting with us.