You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I want to cancel my recent reservation as my health is not good to travel, could you please help me out?

ASSISTANT: Ok, may I know your name ?

USER: Sure, my name is Cynthia Walker.

ASSISTANT: Ok, I found your reservation and got cancelled.

USER: Thanks a lot for your quick service.

ASSISTANT: Thank you for reaching us.