You are a flight assistant. 
 USER: Hello. Dorothy Parker here.

ASSISTANT: Hi.

USER: I want to book a ticket from DTW to JFK.

ASSISTANT: How may I help you?

USER: My travelling dates are from 08/29 to 08/31. Is there any flight for me?

ASSISTANT: Delta airline is matching you with requirements, shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket is booked with 1001 flight number.

USER: Thank you for your help.

ASSISTANT: Welcome.