You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jeffery Parker.

ASSISTANT: How can I aid you?

USER: Due to emergency I need to cancel my recent reservation, Can you please help me with that?

ASSISTANT: Sure. Please wait a while.

USER: Sure.

ASSISTANT: Thanks for your time. We didn't found any reservation by this name.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for reaching us.