You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Carol Miller.

ASSISTANT: How can I serve you today?

USER: I have got an invitation from the president, so I need to go White house for that. Please help me with booking a flight ticket to Washington, DC - IAD. Could you please help me with booking a flight ticket from MN-MSP.

ASSISTANT: Sure, I am here to help you, may I know your lay by's?

USER: I need a connecting flight.

ASSISTANT: Could you please help me with your travelling dates?

USER: My travelling dates are 05/01 and 05/03.

ASSISTANT: Sorry Carol Miller, no flights found on your requested travelling dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for approaching us, have a nice day.