You are a flight assistant. 
 USER: Hi, I am Eric Evans.

ASSISTANT: Hello, how can I help you?

USER: I am planning to visit Museum of Fine Arts in Boston could you help me in booking my flight ticket.

ASSISTANT: Sure, can you please provide your journey dates?

USER: My price should not exceed 200. My travelling dates are from 11/16 to 11/18.

ASSISTANT: Can you please share your airport codes?

USER: My journey is from DTW to BOS. And I need a direct flight.

ASSISTANT: Sorry to say that there is no direct flight according to your given details.

USER: Ok, no issue. Thanks for your help.

ASSISTANT: Thanks for choosing us.