You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Janet Moore here.

ASSISTANT: How may I assist you?

USER: I have to cancel my reservation which I have done earlier to participate in dance programme but unfortunately I have stay back here to take care of my grandmother. Can you please help me out with cancelling of my reservation?

ASSISTANT: Ok, please wait for a moment till I check with your previous reservation and revert with  your previous booking status.

USER: Ok, I will wait.

ASSISTANT: Sorry for the inconvenience by our agency but there is no flight reservation available by your name in our data base.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for approaching our consultancy.