You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you?

USER: Can you help me to book a flight ticket from DCA to IAD?

ASSISTANT: Sure, I am here to help you. Can you please let me know your travelling dates?

USER: My travel dates are May 28 and May 30.

ASSISTANT: Do you prefer any break in between journey?

USER: Yes, I prefer break in between my journey.

ASSISTANT: Is there any other specifications for you?

USER: No.

ASSISTANT: May I know your good name?

USER: I am Steven Hall.

ASSISTANT: We found a connecting flight in JetBlue airline with a fare of 100 which departs at 22:00 and return at 18:00. Shall I proceed for booking?

USER: Please proceed to book my flight ticket in this airlines.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1000.

USER: Thank you.

ASSISTANT: Thank you for choosing us.