You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I  help you?

USER: I am Alexander Garcia, planning to visit Washington. Can you please book me a ticket from BOS to IAD?

ASSISTANT: May I know your travel dates please?

USER: My preferable journey dates are from 04/04 to 04/06.

ASSISTANT: There is a flight with single connection, can I proceed for booking in Southwest airlines?

USER: I need direct flight on this route.

ASSISTANT: I am sorry no direct flight found on your route.

USER: Ok, not an issue. I will find any alternate for this trip.

ASSISTANT: Thank you for choosing us.

USER: Thank you for providing information.