You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Dennis Wright.

ASSISTANT: 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.

ASSISTANT: Sure, may I know your airport codes?

USER: My source airport code is San Francisco, CA - SFO. My destination airport code is Washington, DC - DCA.

ASSISTANT: Can you please share me your travel dates?

USER: I will start my journey on 08/13. I will return back on 08/15.

ASSISTANT: Do you have any specifications?

USER: I need a layover in my journey.

ASSISTANT: We found a flight on your details with airline Hawaiian, flight number: 1024. Shall I book this ticket?

USER: Please, reserve my seat in airline Hawaiian.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you so much for choosing us.