You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: Can you help me in cancelling my ticket? Because I need to attend to an emergency meeting with my family members.

ASSISTANT: Sure, we are here to help. May I know your name?

USER: I am Patricia Thompson.

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

USER: Ok, Thank you for sharing the information.

ASSISTANT: Thank you for opting us.