You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what kind of service do you need?

USER: I am Eric Green, I need to book a flight ticket from BOS to DTW. Can you help me that?

ASSISTANT: Ok, let me know your trip dates.

USER: I would like to travel on 01/07 to 01/09.

ASSISTANT: Ok, be on hold.

USER: Sure.

ASSISTANT: We found a frontier airline, flight number 1001 with the price limit of 100. Shall I proceed?

USER: Ok, proceed for booking.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your information.

ASSISTANT: Thank you for opting us.