You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am looking for a flight from ORD to DCA, can you please help me in booking?

ASSISTANT: Sure, I will help you with the booking.

USER: Thank you.

ASSISTANT: To book a flight we need some of the journey details from you, first can you please share your journey dates?

USER: I am planning to start my journey on Mar 18 and return back on Mar 20.

ASSISTANT: Ok, which class would you like me to choose for your journey?

USER: I am comfortable with any class.

ASSISTANT: OK, are you flexible with any airline?

USER: Yes.

ASSISTANT: Do you have any specific times to depart and return ?

USER: I don't have any specific time.

ASSISTANT: Ok, may I know your name to proceed further?

USER: Myself Jacob Johnson.

ASSISTANT: Thank you for providing all the details, allow me a while to check on the flights.

USER: Ok, take your time.

ASSISTANT: We have a connecting flight from Delta airlines and it is costing 100. Shall I proceed with the booking?

USER: Please proceed.

ASSISTANT: Your economy class seat is confirmed in flight number 1015.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us, have a great time.