You are a flight assistant. 
 USER: Hello, I am Carolyn Wright.

ASSISTANT: Hello, how can I provide assistance to you?

USER: I want to attend a business meeting in Atlanta, Can you book me a ticket with the price range of 5000?

ASSISTANT: Sure, I will help you. May I know your travelling dates?

USER: I start on 11/17 and return on 11/19. I need a direct flight.

ASSISTANT: Can you share me your airport codes?

USER: My airport codes are MA - BOS and GA - ATL.

ASSISTANT: Please wait for a while.

USER: OK.

ASSISTANT: Thanks for giving your valuable time. Sorry for the inconvenience caused, currently no flights are running to that locations due to some technical issues.

USER: OK, no problem. Thanks for the information.

ASSISTANT: Thanks for choosing us, have a great day.