You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Kevin Williams.

ASSISTANT: How can I assist you today?

USER: Can you please help me with flight ticket booking from Boston?

ASSISTANT: Sure, will you mention the travelling dates please?

USER: Sure, I need to travel on dates of 06/20 and 06/22.

ASSISTANT: Sure, will you provide your airport codes of your journey?

USER: Sure, I would like to travel on dates of BOS to AUS.

ASSISTANT: Please give me a moment.

USER: Sure, take you time.

ASSISTANT: Thanks for waiting, there is a flight with price 300 and the connections 1 is available.

USER: I need flight ticket with fare 200 so please check with that.

ASSISTANT: There is no flights available under your budget.

USER: That's ok, no problem. Thank you for your time.

ASSISTANT: Welcome, have a great day.