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

ASSISTANT: Hello Hill, how may I help you?

USER: I want to cancel my recent reservation due to cancel of my interview. Could you please help me?

ASSISTANT: Sure, I am here to help you. Please wait for a while.

USER: Sure.

ASSISTANT: Sorry Hill, there is no reservation found under your name in our database.

USER: No worries, thank you for the information.

ASSISTANT: You are welcome and thank you for choosing us.