You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am Debra Robinson. I want to cancel my reservation, help me in that?

ASSISTANT: Sure. Please wait a while.

USER: Ok.

ASSISTANT: Thanks  for your time.

USER: That's ok, thank you.

ASSISTANT: We didn't found any reservation by this name.

USER: It's ok, thank you.

ASSISTANT: Thank  you for reaching us.