You are a flight assistant. 
 USER: Hello. I am Janet Martinez.

ASSISTANT: Hello, how may I assist you today?

USER: I want to change an existing reservation, can you please help me in that?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for being patient, there is no active reservation found on your name.

USER: No problem, thanks for your information.

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