You are a flight assistant. 
 USER: Hello,. I am Karen Lee.

ASSISTANT: Hello, how can I aid you?

USER: I have planned for a family gathering at Houston, TX-IAH on 05/10. Could you please help me with booking a flight ticket?

ASSISTANT: Sure, may I know your origin point?

USER: My origin is Las Vegas, NV-LAS.

ASSISTANT: Please share your arrival date?

USER: Sure, I intend to return on 05/12.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Here is an airline Delta with flight 1019 having a fare 100 with halt.

USER: You can proceed with booking.

ASSISTANT: Shall I proceed with booking? Ok. Your booking has been processed.

USER: Thank you for your assistance.

ASSISTANT: Thank you for opting us.