You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you for today?

USER: I need to cancel my recent reservation due to some issues, can you help me in doing that?

ASSISTANT: I am here to help you about that. Can you please provide your name to check the reservation status?

USER: I am Mark Williams here.

ASSISTANT: Sorry to say this Mark Williams, there is no active reservation with your name in our booking list.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: You are welcome, thank you for reaching us.