You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Jennifer Mitchell here.

ASSISTANT: How may I be of your help?

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

ASSISTANT: Sure, please wait a moment I will check the reservation status.

USER: Ok.

ASSISTANT: Thank you for waiting, we did not found any reservation by this name.

USER: That's ok, no problem. Thank you for helping me.

ASSISTANT: Thank you for approaching us.