You are a flight assistant. 
 USER: Hello, I am Nicole Miller.

ASSISTANT: Hello, how can I aid you?

USER: Due to some financial problems, I need to change my existing reservation. Can you help me?

ASSISTANT: Sure, I will help you in changing your reservation.

USER: Thank you. Take your time.

ASSISTANT: Please wait a moment. Sorry, no reservation found with your name to change your reservation.

USER: No issues. Thank you for confirming me.

ASSISTANT: Thank you for reaching us.