You are a flight assistant. 
 USER: Hello, I am Cynthia Lewis.

ASSISTANT: Hello, how may I assist you today?

USER: I am looking for a connecting flight, within the fare 500. Can you help me to provide a ticket?

ASSISTANT: Sure, could you help me with your travelling dates?

USER: My travelling dates are from 11/05 to 11/07.

ASSISTANT: May I know your airport codes?

USER: My airport codes are ATL to IAH.

ASSISTANT: We found a flight on southwest airline, flight number as 1002 with the fare of 100.

USER: You can proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.