You are a flight assistant. 
 USER: Hi, I am Deborah Lopez.

ASSISTANT: Hello, how may I assist you?

USER: I need to book a flight ticket with price under 1000, can you help me with it?

ASSISTANT: Sure, please share your travel dates.

USER: Ok, my travelling dates are 03/02 and 03/04.

ASSISTANT: May I know your airport codes?

USER: Yes, it is a round trip my airport code is MI-DTW.

ASSISTANT: There is flight of frontier airline, flight number 1003 with the fare of 100.

USER: Ok, please proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.