You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Michelle King here.

ASSISTANT: In which way I can aid you at this moment?

USER: I would like to change my recent reservation, can you help me to change this?

ASSISTANT: Sure, I will aid you with that. Please wait a moment.

USER: Ok fine.

ASSISTANT: There is no previous reservation available under your name.

USER: That's fine, thanks for your information anyways.

ASSISTANT: Thank you for reaching us, have a nice day.