You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: Myself Mary Harris. I need to travel Washington DC, can you please reserve flight ticket from DTW and IAD.

ASSISTANT: Sure Mary Harris, I am happy to help you with that.  Can I have your travel dates please?

USER: My travelling dates are May,11 and May,13.

ASSISTANT: Ok, please wait a moment to check flight availability.

USER: Please take your time.

ASSISTANT: I have found a flight in Delta airlines which is having connection 1 and the ticket fare is 100. Are you ok with this flight?

USER: Please proceed with the reservation.

ASSISTANT: Ok Mary Harris, your ticket booking has done and the flight number is 1021.

USER: Thank you for booking my flight ticket.

ASSISTANT: Thank you for choosing us, have a great journey.