You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Please help me to change my recent reservation.

ASSISTANT: Sure, I will make sure that this gets resolved for you.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: Karen Wright here.

ASSISTANT: Would you mind waiting for a moment?

USER: Sure.

ASSISTANT: I appreciate your time and patience. Sorry I could not find your flight reservation to change it.

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

ASSISTANT: Thank you.