You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Steven Hill.

ASSISTANT: How could I serve you?

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

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: There is no reservation found with your given name in our data.

USER: That's ok, thank you.

ASSISTANT: Thank you.