You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Daniel Roberts. I need to book a ticket to meet my girlfriend to visit the church on 08/28. Could you please help me in booking a return ticket on 08/30?

ASSISTANT: Sure, may I know your airport codes?

USER: My airport codes are MSP and BOS.

ASSISTANT: Do you have any specification?

USER: Price should be below 500. Sorry, it should be below 200.

ASSISTANT: We found a flight on your details with airline Frontier, flight number: 1017. Shall I book this ticket?

USER: You can proceed with booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for helping me.

ASSISTANT: Thank you.