You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Elizabeth Edwards. I am planning a round trip from SFO for a shopping, can you book a  ticket for me?

ASSISTANT: Ok, please provide your planned dates to go.

USER: My planning dates are from 12/02 to 12/04.

ASSISTANT: Please hold on moment, let me check the flight availability.

USER: Ok.

ASSISTANT: Thanks for your time, there is a flight-1017 of Spirit airline with connection 1 and price 100. Is it ok for you?

USER: That's great, please proceed.

ASSISTANT: Ok, your ticket has been done.

USER: Thank you for your help.

ASSISTANT: Welcome, have a happy journey.