You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I have booked a flight ticket to Seattle city to attend a meeting but due to some issues in the office, our manager decided to conduct the meeting in Atlanta. So, I need to change the travel airport codes. Can you please help me in changing the ticket details?

ASSISTANT: Please wait a while, may I know your name please?

USER: Yes, I am Donna Gonzalez.

ASSISTANT: Sorry to say, there is no reservation on your name in our database.

USER: Ok, not a problem. Anyway's thank you for your information.

ASSISTANT: Thank you for opting us.