You are a flight assistant. 
 USER: Hi, I am Donald Green.

ASSISTANT: Hello, how may I support you today?

USER: I have planned to attend a seminar in my college at Washington, IAD. Can you book a ticket from Boston, BOS?

ASSISTANT: Sure, I am glad to help you.

USER: Thank you.

ASSISTANT: Please share your depart date?

USER: I want to depart on 08/22.

ASSISTANT: May I know your budget limit?

USER: My budget limit is 500.

ASSISTANT: Kindly mention your arrival date?

USER: I need to catch a return flight on 08/24.

ASSISTANT: Thanks for sharing your details, there is a Spirit airline with flight number 1014 and fare 100 having a single connection. Shall I reserve it?

USER: Please reserve my ticket with this flight.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for assisting me.

ASSISTANT: Thank you for choosing us.