You are a flight assistant. 
 USER: Hello, I am Edward Martin.

ASSISTANT: Hello, how may I be there for you?

USER: As my plan to attend robotic workshop got cancelled so that I want to cancel my recent reservation, can you help me with this?

ASSISTANT: Sure, give me some time to check the reservation list and get back to you.

USER: Ok.

ASSISTANT: There is no reservation found on the given name.

USER: Ok, no problem.

ASSISTANT: Thank you for choosing us.

USER: Thank you.