You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I have done my booking last week to Denver from Austin for attempting exams there. But, due to weather conditions over there my exams got postponed. So, I would like to cancel my reservation.

ASSISTANT: Sure, I will help you. May I know your good name?

USER: Sure, I am Dorothy Smith.

ASSISTANT: Thank you for providing information, please hold on.

USER: Sure, take your time.

ASSISTANT: Thank you for your patience, no reservation found with your name.

USER: Its ok, thank you for the information. It might be cancelled by my mother but she did not informed me yet.

ASSISTANT: Thank you for choosing us, have a great day.