You are a flight assistant. 
 USER: Hi. My name is Patricia Robinson.

ASSISTANT: Hello, how can I help you?

USER: My meeting got postponed, please help me to change my existing reservation.

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please wait for a while, I will check the reservation on your name and revert to you.

USER: Sure.

ASSISTANT: Thank you for being patient, There was no reservation found on your good name.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for reaching us.