You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you please assist me in booking a flight from DFW to DCA?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know your planning dates to travel?

USER: My travel dates are June 25th and 27th.

ASSISTANT: Ok, do you have any connection preference?

USER: I am fine with maximum one connecting flight.

ASSISTANT: Is there any specific time preference to fly?

USER: I am flexible to depart anytime but please make sure my return flight should be in the afternoon.

ASSISTANT: Please wait a moment, I will get back to you with the availability of flights.

USER: Sure.

ASSISTANT: Thank you for waiting, there is a connecting flight in Hawaiian airline at a price of 500 only in business class. Shall I proceed with the booking in flight 1001?

USER: Please move forward with the booking.

ASSISTANT: Ok, please share me  your name to proceed further.

USER: My name is Larry Carter.

ASSISTANT: Your booking has been done successfully.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing our service.