You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jack Clark.

ASSISTANT: How may I guide you today?

USER: My business meeting has been cancelled, could you please help me with cancelling my recent reservation?

ASSISTANT: Jack Clark, please wait for a moment till I check with availability for you. I am sorry to inform you, there is no flight reservation available by your name.

USER: That's ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for consulting us with booking. Have a great day.