You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Owing an emergency, I want to cancel my recent reservation. Can you please help me out?

ASSISTANT: Sure, may I know your name please?

USER: My name is Samantha Roberts.

ASSISTANT: Wait a while, kindly.

USER: Sure, I will wait for your information.

ASSISTANT: Sorry, there is no reservation found for the user name in our back end to cancel it.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us. Have a nice day.