You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: I am Rebecca Campbell. I have fallen sick due to bad whether so I want to cancel my recent reservation, can you please help me with that?

ASSISTANT: Sure, please wait I will check your reservation existed or not.

USER: Sure, take your own time.

ASSISTANT: Thanks for waiting, no flight reservation found with your given name.

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

ASSISTANT: Thank you for approaching us.