You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Cynthia Carter.

ASSISTANT: How can I help you?

USER: Owing to an emergency I want to cancel my recent reservation, can you do it for me?

ASSISTANT: Sure, please wait for a while to check your reservation status.

USER: Ok, take your time. That's ok, thank you for approaching us.

ASSISTANT: Sorry, there is no reservation found by your name. Thank you and have a nice day.