You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Sharon Lopez here.

ASSISTANT: How may I guide you?

USER: I want to attend a Seminar in Houston. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, can I know your preferable dates?

USER: My travelling dates are from 06/06 to 06/08.

ASSISTANT: Can I know your airport codes?

USER: My airport codes are from EWR to IAH.

ASSISTANT: I found a flight 1024 of Southwest airlines matches with your preferences, can I proceed?

USER: Make sure my price limit is 500.

ASSISTANT: Your ticket is booked.

USER: Thanks for helping me.

ASSISTANT: Thank you.