You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Katherine Thompson here.

ASSISTANT: How can I help you Thompson?

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

ASSISTANT: Sure, please share your travel dates to proceed further.

USER: My travelling dates are from 04/18 to 04/20.

ASSISTANT: May I know your airport codes please?

USER: My airport codes are from EWR to LAS. Make sure my price limit is 200.

ASSISTANT: Please wait for a while.

USER: Ok, I will wait.

ASSISTANT: There is a connecting flight 1001 of Southwest airlines available for you with price 100.

USER: Please proceed for booking the flight ticket.

ASSISTANT: Ok, I confirmed your ticket successfully.

USER: Thanks for helping me.

ASSISTANT: Thank you for opting us.