You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Donna Roberts here. I need to cancel my recent reservation, can you help me in doing that?

ASSISTANT: Sure, give me minute.

USER: Ok, take your time.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thank you for reaching us.