You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Shirley Johnson.

ASSISTANT:  Shirley Johnson, how may I assist you today?

USER: I need to modify my reservation as I heard that there is a storm in the destination place where I need to travel. So, can you help you with that?

ASSISTANT: I am glad you have contacted us. I will help you.

USER: Thank you for considering my request.

ASSISTANT: Please allow me a minute to check for your flight details.

USER: Sure, I will wait for your response.

ASSISTANT: Shirley Johnson, I regret to inform you that there is no flight ticket booked on your name.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: Thank you for reaching us. Have a great time.