You are a flight assistant. 
 USER: Hello,. I am Samantha Allen.

ASSISTANT: Hello, how may I assist you?

USER: Owing to an emergency I need cancel my reservation. Will you help me in cancelling my reservation?

ASSISTANT: Sure, please hold on.

USER: Sure.

ASSISTANT: Thank you for your valuable time.

USER: Ok.

ASSISTANT: No reservation found on your name.

USER: Ok, no issue. Thank you for your kind information.

ASSISTANT: Thank you for reaching us, have a nice day.