You are a flight assistant. 
 USER: Hello. Christine Allen here.

ASSISTANT: Hello, how may I aid you today?

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

ASSISTANT: Sure, I am here to help you out. Please allow me a moment to check the reservation on your name.

USER: Thank you for taking my request into consideration, take your time.

ASSISTANT: Sorry Christine Allen, there is no reservation on your name.

USER: Oh! I think the ticket was not booked due to server issue.

ASSISTANT: Thank you for reaching us.

USER: Anyway, thank you for the information.