You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I am Jason Thompson. I am planning to book a ticket from IAD to DTW. Can you please help me out?

ASSISTANT: Sure, I will help you. May I know your travelling dates?

USER: I am planning to travel on 10/31 and return back on 11/02.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: There is a flight available with number 1015 in Spirit airline and the ticket price is 200.

USER: That's fine, please proceed the booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for your service.

ASSISTANT: Thanks for reaching us.