You are a flight assistant. 
 USER: Hi, I am Robert Thomas.

ASSISTANT: Hello, how can I help you?

USER: I got an invitation from my brother, to participate in Sasquatch music fest held at Detroit.

ASSISTANT: May I know your journey dates?

USER: Can you please help me to book a flight ticket?

ASSISTANT: Sure, we are glad to help you for booking.

USER: My journey dates are: starting from 05/21 and return at 05/23.

ASSISTANT: Can you please provide your price limit?

USER: My price limit does not exceed more than 200.

ASSISTANT: Ok, May I know your source and destination details?

USER: My arrival and departure codes are: MI - DTW and FL - MCO.

ASSISTANT: Ok, wait for a couple of minutes.

USER: Ok.

ASSISTANT: Thank you for waiting, we did not find any flights based on your details.

USER: Ok, not an issue. Thanks for your service.

ASSISTANT: Thank you for opting us, have a nice day.