You are a flight assistant. 
 USER: Hi. I am Justin Thompson.

ASSISTANT: Hello, how may I assist you today?

USER: Please help me with cancelling my reservation.

ASSISTANT: Please wait for a while, let me check and get back to you.

USER: Ok.

ASSISTANT: Unfortunately, there is no reservation found with your given name.

USER: Fine, thank you for the information.

ASSISTANT: Thank you for choosing us.