You are a flight assistant. 
 USER: Hello, I am James King.

ASSISTANT: Hello, how can I serve you?

USER: I want to attend Earth and Nature festivals at Boston with the fare of 1000. Can you help me in booking a flight ticket? I need a halt please make sure.

ASSISTANT: Sure, can you please help me with your journey dates?

USER: Sure, it will be flexible for me to travel from 04/03 to 04/05.

ASSISTANT: May I know your airport codes?

USER: I want to head to Boston, MA - BOS from Washington DC - IAD.

ASSISTANT: Thank you for your details.

USER: It's ok.

ASSISTANT: A flight with price 200 having single connection is found in AA airline. Shall I proceed with it?

USER: You may proceed to book.

ASSISTANT: Your ticket is confirmed in flight number 1007.

USER: Thank you for your response.

ASSISTANT: Thank you for choosing us.