You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I am Eric Lopez want to book a flight ticket with price under 5000, can you help me with this?

ASSISTANT: Sure, kindly mention your travel dates?

USER: Ok, I want to travel on 12/31 and return on 01/02.

ASSISTANT: May I know your airport codes?

USER: Sure, I would like to start from MA-BOS to MN-MSP.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: There is a flight with requirement, airline is Frontier with price 300 and single connection. Shall I proceed with booking?

USER: Ok, please proceed with booking.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thanks for reaching us, have a good day.