You are a flight assistant. 
 USER: Hello. Gregory Martinez here.

ASSISTANT: Hello. How can I assist you today?

USER: I am looking for booking a ticket to DCA, going to give a presentation of my story to a publisher at Washington, can you please book a ticket for me from DTW?

ASSISTANT: Sure, will you provide your travelling dates?

USER: After New Year, from 01/02 to 01/04.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: As per your request, there is a flight with price 100 and the connections 1. Shall I proceed for booking?

USER: That's sound good. Please go ahead.

ASSISTANT: Your ticket is booked.The flight number is 1025.

USER: Thank you for ticket booking.

ASSISTANT: Thank you for reaching us.Have a great day.