You are a flight assistant. 
 USER: Hello, I am Jonathan Thomas.

ASSISTANT: Hello, what sought of help are you expecting from us?

USER: I want to book a flight ticket under price 200. Can you please help me?

ASSISTANT: Sure. Let me know your travelling dates.

USER: 05/26 is my departure date and 05/28 is my arrival date of travelling.

ASSISTANT: Could you please provide airport codes of your journey?

USER: Sure, DC-DCA and TX-HOU are my airport codes.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: We found a flight available with Frontier airline, flight number 1017. Price 100 and 1 connection. Shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Your flight has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us.