You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Carolyn Johnson. Due to some reasons I want cancel my recent reservation, can you help me?

ASSISTANT: That's sad, let me check with your reservation.

USER: Ok.

ASSISTANT: Sorry to inform you that no reservation found by your name.

USER: It's ok. Thank you for your information.

ASSISTANT: Thanks for reaching us. Have a good day.