You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: My name is Brandon Roberts, I want to travel to Philadelphia for receiving  my graduation certificate.

ASSISTANT: Can please provide airport codes?

USER: I am travelling from MN-MSP to PA-PHL.

ASSISTANT: Can please provide travelling dates?

USER: My travelling dates are 06/19 to 06/21.

ASSISTANT: Your requested dates are matched with one flight ticket. Connection limit is 1 and price limit is 200. Shall I proceed?

USER: Ok, proceed my booking.

ASSISTANT: Ok. Your flight ticket is booked.

USER: Thank you for helping me out.

ASSISTANT: You are welcome.