You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I am having a small event about my parents in Washington who are staying there for past few years. So, I want to travel a long way from Detroit in the month of June. Can you please book me a boarding and takeoff flight on 06/15 and 06/17?

ASSISTANT: Sure, I will help you in booking the ticket as per your requirements.

USER: Thank you for your positive response.

ASSISTANT: May I know your airport codes so that I can check for flights?

USER: Sure, my airport codes are DTW and IAD.

ASSISTANT: Please wait a moment.

USER: Ok, take your time.

ASSISTANT: There is a flight with connection 1 and price 100 with flight number 1021, can I proceed with this flight?

USER: Yes, book this flight for my journey on my name Jason Perez.

ASSISTANT: Ok, your ticket has been booked under your name.

USER: Thank you for booking my flight ticket with flight 1021.

ASSISTANT: Thank you for choosing our valuable services.

USER: You are welcome.