You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I have planned to attend the soccer final match at Dallas, due to heavy rains the match got cancelled. So I would like to cancel my recent reservation.

ASSISTANT: Can I know your name for checking the details?

USER: My previous reservation has done with the name of Robert Harris.

ASSISTANT: Please give me a minute, I will be back with the flight details.

USER: Sure, take your own time.

ASSISTANT: Sorry Harris, I couldn't find any reservation on your name.

USER: That's ok, may be something went wrong while I'm booking.

ASSISTANT: I think so.

USER: Thank you for providing information.

ASSISTANT: You are welcome.