You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How may I help you?

USER: Due to tight schedule, I am planning to visit San Francisco on other day, could you please help me in cancelling my recent reservation?

ASSISTANT: Please tell me your name.

USER: My name is Nicole King.

ASSISTANT: May be your ticket is not booked properly. That's why, I didn't found any reservation with your name.

USER: Ok, no problem.

ASSISTANT: Thank you for choosing us.

USER: Thank you for your valuable information.

ASSISTANT: Welcome.