You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Debra Thomas.

ASSISTANT: How may assist you Debra Thomas?

USER: I would like to fly BOS, so can you help me booking flight on 02/15?

ASSISTANT: Sure, can I have your current location with return journey date?

USER: I am going to return my source airport ORD on 02/17.

ASSISTANT: Do you have any other requirements?

USER: Provide flight with connection 1.

ASSISTANT: There is a flight availability, exactly matched to your criteria on Spirit airline with price 100.

USER: Ok, proceed to booking that flight.

ASSISTANT: Ok, your ticket has been done with flight number 1020.

USER: Thank you for your services.

ASSISTANT: Welcome, have a safe journey.