You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

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

ASSISTANT: Sure, I am here to help you out. Please allow me a moment.

USER: Ok, take your time.

ASSISTANT: Sorry Smith, there is no flight reservation on your name in our data base.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Thank you for reaching us.