You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you today?

USER: I am John Phillips want to change my reservation, can you please help me with it please?

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: Thanks for your time, there was no reservation found on your name.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for reaching us.