You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Is there any help that I can assist you?

USER: I want to cancel my recent reservation owing to an emergency.

ASSISTANT: Sure, I can help you and may I know your name for checking your reservation?

USER: My name is Jeffrey Campbell.

ASSISTANT: Let me check with your details, please wait.

USER: Sure.

ASSISTANT: Thank you for waiting, there is no reservation found for the user name in our back end to cancel the ticket.

USER: Thank you.

ASSISTANT: You are most welcome and have a nice day.