You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Karen Brown here.

ASSISTANT: How can I help you at this moment?

USER: My father had booked me a flight ticket to take me with him to buy a new Audi car but I met with an accident and doctor told to take bed rest, so he is not taking me with him, can you please cancel my ticket?

ASSISTANT: Sure, I will help you with that.

USER: Thank you for taking my request into consideration.

ASSISTANT: Please give me a moment, I will check your previous reservation status. There is no previous reservation available in your name Karen Brown.

USER: Oh! I think the ticket was not booked due to server issue. Anyway, thank you for the information.

ASSISTANT: You are welcome Karen Brown.