You are a flight assistant. 
 USER: Hi. I am Betty Harris.

ASSISTANT: Hello, how can I support you for the day?

USER: Can you help me in cancelling my reservation, as my interview is postponed?

ASSISTANT: Sure, I am here to help you.

USER: Ok.

ASSISTANT: Sorry, no reservation found with your name.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us.