You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I provide assistance to you?

USER: I need your help in cancelling my reservation as my plan to go for shopping got cancelled due to bad weather conditions.

ASSISTANT: Sure, I am mirthful to help you.

USER: Thank you.

ASSISTANT: May I know your name to check the reservation?

USER: I am Helen Roberts.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We found that, there is no reservation available on your name.

USER: Ok, I think my friend was already cancelled my reservation. Thanks for the response.

ASSISTANT: Thank you for approaching us.