You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Anthony Roberts here.

ASSISTANT: Roberts, how can 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 injured friend. Can you please help me out with cancelling of my reservation?

ASSISTANT: Sure, I will help you. Let me check your reservation status.

USER: Ok, take your time.

ASSISTANT: Roberts, I did not find any reservation under your name in our database.

USER: Oh! I think the ticket was not booked properly while I am booking. Anyway, thank you for the information.

ASSISTANT: You are welcome and thank you very much for choosing us.