You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Due to an urgency, I would like to cancel my recent reservation. Can you help me with this?

ASSISTANT: Sure, I will help you. Please share your name.

USER: My name is Patrick Williams.

ASSISTANT: There is no reservation on your name in our database.

USER: Ok, not an issue. May be something went wrong while booking.

ASSISTANT: Thank you for opting us.

USER: Thank you for providing information.