You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Myself Laura Mitchell. I need to travel Chicago, can you please reserve flight ticket from DCA and ORD?

ASSISTANT: Sure, can I know your travelling dates?

USER: My travelling dates are June,06 and June,08.

ASSISTANT: Do you have any particular time for departing and returning?

USER: My return time should be in the evening.

ASSISTANT: Would you like to prefer direct flight or connecting flight?

USER: I am comfort with any flight connection.

ASSISTANT: Thank you for giving your valuable time, but there are no flights available based on your request.

USER: That's ok, thank you.

ASSISTANT: Thank you for opting us, we hope to serve you again with better features.