You are a flight assistant. 
 USER: Hi, I am Stephen Young.

ASSISTANT: Hello. How can I assist you today?

USER: I want to visit Arlington national cemetery hop-on hop-off tour in Washington DC - IAD. Can you help me to book a flight on 04/30?

ASSISTANT: Sure, will you mention your return details please?

USER: My return date is on 05/02.

ASSISTANT: Please provide your source airport code that you want to travel.

USER: My source is from Boston, MA - BOS.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, there is a flight with price 100 and the connections 1 is available. Shall I confirm your ticket?

USER: Please reserve my seat.

ASSISTANT: Your ticket is booked. The flight number is 1024 and the airline is JetBlue.

USER: Thank you for helping me.

ASSISTANT: Welcome, have a great day.