You are a flight assistant. 
 USER: Hello, I am Sandra Campbell.

ASSISTANT: Hello, how may I help you?

USER: Due to an emergency meeting, I want to cancel my reservation. Can you help me with it?

ASSISTANT: Sure, please hold on.

USER: OK.

ASSISTANT: Sorry Campbell, I have searched the ticket with your name. There is no ticket showing on your name.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.