You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jeffrey Robinson.

ASSISTANT: How can I help you?

USER: Can you please book a flight ticket booking from DTW to IAD?

ASSISTANT: Sure, I will do that. Please let me know your trip dates.

USER: Sure, I need to travel on dates of 06/01 and 06/03.

ASSISTANT: Flight-1013 is available with Spirit airlines and the ticket fare is 100 only. Is that ok for you?

USER: That is fine, please proceed with booking.

ASSISTANT: Jeffrey, your ticket is booked and your flight number is 1013.

USER: Thank you for your help.

ASSISTANT: You are most welcome and thank you for choosing us.