You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Due to heavy snow storm, I need to cancel my recent reservation. Please help me in that.

ASSISTANT: Sure, I am here to help you out. May I know your name please?

USER: Yes, my name is Jacob Jackson.

ASSISTANT: We regret to inform you that we haven't found any reservation under your name in our database.

USER: Oh! May be my father has already cancelled it. Thank you anyways.

ASSISTANT: Thank you for choosing us.