You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Steven Martinez here.

ASSISTANT: How can I assist you?

USER: Reserve a flight ticket for me that is for my airport codes BOS to DTW. My price limit is less than 200.

ASSISTANT: Sure Steven, can I know the travel dates please?

USER: My travelling dates for journey are 02/08 to 02/10.

ASSISTANT: There is a flight in AA airline with price 100, can I book it?

USER: You can book the flight ticket.

ASSISTANT: Your ticket has been booked with flight number 1004. Thank you for approaching us.

USER: Thank you.