You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Justin Evans. My exam has been postponed due to some issues, can you cancel my previous reservation?

ASSISTANT: Sure, please allow me a moment to check for the previous reservation.

USER: Ok.

ASSISTANT: Justin, there is no reservation found under your name.

USER: That's fine. Anyway, thank you for your help.

ASSISTANT: You are welcome. Thank you for reaching us.