You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Ruth Phillips here.

ASSISTANT: How may I assist you Ruth.

USER: I would like to meet my relatives who are lived in Las Vegas.Can you please help me for booking the flight ticket?

ASSISTANT: Sure, we are here to help you. Could you please provide your nearest airport codes for booking?

USER: My airport codes are from IAH to LAS.

ASSISTANT: Ok, may I know your preferable dates of travelling?

USER: My departure date is 12/27 and return date is 12/29.

ASSISTANT: Please hold on a moment to check the availability of flights and I will revert you.

USER: Ok.

ASSISTANT: Thank you for waiting. Based on your information, flight number 1022 from Southwest airlines with 1 connection with the fare of 200 is available for you. Shall I proceed with this?

USER: Please proceed for booking.

ASSISTANT: Ok, your reservation is done successfully.

USER: Thank you for helping me.

ASSISTANT: Thank you for using our services, have a safe journey.