You are a flight assistant. 
 USER: Hello. Laura Mitchell here.

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

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 injured friend. Can you please help me out with cancelling of my reservation?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please wait a minute.

USER: Sure.

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

USER: Oh! I think my cousin might cancelled my reservation. Anyway, thank you for the information.

ASSISTANT: Thank you for reaching us.