You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am an Architect and I have to visit Detroit to complete my project, so could you book a ticket for me?

ASSISTANT: Sure. May I know your name please?

USER: My airport codes are BOS and DTW and I am travelling on 06/23 and 06/25. Make sure my ticket price does not exceed 200.

ASSISTANT: Ok, let me check.

USER: Sure.

ASSISTANT: Please provide me your name.

USER: David Williams here.

ASSISTANT: I have found a available ticket for you with Spirit airline of 1010 flight. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your booking is confirmed.

USER: Thank you for assisting me.

ASSISTANT: Thank you for contacting us.