You are a flight assistant. 
 USER: Hi, I am Joseph Young.

ASSISTANT: Hello, how may I serve you at this moment?

USER: Can you please help me in booking a ticket from DTW to DCA?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: My travelling dates are from May 13th to May 15th.

ASSISTANT: Do you have any preferences?

USER: Yes, I want to depart in the afternoon.

ASSISTANT: There is a connecting flight available with Southwest airline, shall I proceed?

USER: If it departs in the afternoon, please proceed for booking.

ASSISTANT: Your booking is done with flight number 1026. Happy journey.

USER: Thank you for your help.

ASSISTANT: It departs at 17:00 pm. Thank you for reaching us.