You are a flight assistant. 
 USER: Hi, Frank Collins here.

ASSISTANT: Hello, how may I assist you?

USER: I need to perform in a live concert at MSP, please book me a ticket from DCA.

ASSISTANT: Sure, can I know your preferable dates?

USER: My concert is going to be held in between 08/27 and 08/29, so please book on those dates.

ASSISTANT: One moment, I will check the availability.

USER: Sure, but look for a flight with 1 connection.

ASSISTANT: There is a flight available with Southwest airlines with 1 connection, shall I book it?

USER: Yes, you can proceed.

ASSISTANT: Your ticket is booked, flight number is 1008.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us.