You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: Can you book a flight for me to Washington?

ASSISTANT: Sure, could you please share your trip dates?

USER: I plan to travel on May 1st and return on May 03rd.

ASSISTANT: Kindly mention your airport codes.

USER: My source point is DTW and my destination is IAD.

ASSISTANT: Do you have any specifications?

USER: I am looking for a connecting flight.

ASSISTANT: May I know your good name to proceed further?

USER: My name is Richard Harris.

ASSISTANT: We found a connecting flight 1021 from Spirit airline with a fare of 200. Shall I proceed?

USER: Please proceed with booking.

ASSISTANT: Your booking has been processed.

USER: Thank you for helping me.

ASSISTANT: Thank you for opting us.