You are a flight assistant. 
 USER: Hello, Thomas Thomas here.

ASSISTANT: Hello. How can I help you?

USER: I have an important business meeting in Washington, so could you please help me to book a flight from BOS to IAD?

ASSISTANT: Sure, I will help you with that. May I know the travelling dates?

USER: I am leaving on 05/31 and after completion of my meeting I would like to return on 06/02.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, take your own time.

ASSISTANT: Thank you for waiting, there is a flight 1012 in Spirit airline has the price 100. Shall I proceed with this booking?

USER: Sure, please proceed to book.

ASSISTANT: Your ticket has been booked, have a safe journey.

USER: Thank you for your help, have a great day.

ASSISTANT: You are welcome.