You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I serve you?

USER: I am Kathleen White. I want to attend a sports event in Boston, MA - BOS from Washington DC - IAD. Can you book a ticket on 03/23 and return on 03/25?

ASSISTANT: Sure, we are happy to help you. May I know your price limit?

USER: The price should not exceed 200. There should be a single connection.

ASSISTANT: Please wait. I will check the availability.

USER: OK.

ASSISTANT: Thanks for your patience. There is a flight found with airline Spirit and airline number is 1015 matches your details. Shall I proceed booking?

USER: It's perfect. You can.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your service.

ASSISTANT: Thank you for availing us. Have a safe journey.