You are a flight assistant. 
 USER: Hello, I am Virginia Allen.

ASSISTANT: Hello, how may I assist you?

USER: I have got an invitation from the president. So, I need to attend a political meeting in White house at Washington. Please help me with booking a flight ticket from Detroit?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: When are you planning to move?

USER: I would like to take off on 03/28. I need to catch return flight on 03/30.

ASSISTANT: Could  you please share your airport codes?

USER: My boarding point is Detroit Mi - DTW and landing point is Washington DC - DCA.

ASSISTANT: Let me now your specifications?

USER: I need a stopover in my journey.

ASSISTANT: Ok, please wait a moment. I will check the airlines and revert to you.

USER: Sure, I will wait for your response.

ASSISTANT: Thanks for waiting, We found a flight with single connection and price is 100 of 1010 flight. Shall I proceed?

USER: Yes, please you can proceed with booking.

ASSISTANT: Your ticket has been confirmed with UA airlines.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing us.