You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I abet you?

USER: I am Emma Miller. Can you help me in booking the ticket from DCA to MSP?

ASSISTANT: Sure, kindly mention your preferred dates of journey.

USER: My planning dates are from 04/26 to 04/28.

ASSISTANT: Do you need a halt?

USER: Make sure that, I need a direct flight.

ASSISTANT: Sorry, there is no direct flights available to your destination on given dates.

USER: That's fine. Anyway, thank you for your help.

ASSISTANT: Thank you for choosing us.