You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Debra Green.

ASSISTANT: Green, how can I help you?

USER: Can you book a connecting flight to Boston?

ASSISTANT: Sure, I am here to help you. Can you please tell us your source and destination airport codes?

USER: I am looking for a flight with price below 5000. My airport codes are SEA to BOS.

ASSISTANT: Ok, can you please provide me your travel dates?

USER: I am giving you my journey dates that is from 12/16 to 12/18.

ASSISTANT: Ok, please wait for a moment. There is a flight-1009 available with 1 connection and the ticket fare is 200 only. Shall I book the ticket?

USER: Yes, you can book it.

ASSISTANT: Green, your ticket is booked successfully with the JetBlue airlines.

USER: Ok. Thanks for the booking.

ASSISTANT: You are welcome, have a nice day.