You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Rebecca Allen here.

ASSISTANT: How may I be of your assistance?

USER: Please help me out in booking the ticket from ATL to MSP.

ASSISTANT: Sure, we are glad to assist you in booking. Please share your planned travelling dates to proceed further.

USER: My trip dates will be Apr 22 to Apr 24.

ASSISTANT: Kindly mention if you have any class preference.

USER: No.

ASSISTANT: Do you need a lay by in between your journey?

USER: I want direct flight.

ASSISTANT: Is there any other preferences that you would like to add before booking?

USER: No.

ASSISTANT: Thank you for sharing your journey details, please wait a moment.

USER: Ok.

ASSISTANT: Thank you for waiting. We are unable to provide flight in between your journey routes due to some technical up-gradation at destination airport.

USER: That's ok, thank you.

ASSISTANT: Thank you for approaching us.