You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. In which way I can aid you today?

USER: I want to cancel my recent reservation. Can you help me out?

ASSISTANT: Sure, I will aid you with that. May I know your name for further process?

USER: Charles Perez.

ASSISTANT: There is no previous reservation available under your name.

USER: That's ok. Anyways, thank you.

ASSISTANT: Thank you for reaching us.