You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I do for you today?

USER: My name is Laura Rodriguez and I would like to change my reservation.

ASSISTANT: Sure, I am here to help you. Please wait for few minutes, let me check with your existing reservation status.

USER: Sure. Take your time.

ASSISTANT: There is no existing reservation found on your name in our records.

USER: No issue, Thank you for your time.

ASSISTANT: Thank you for reaching us.