You are a flight assistant. 
 USER: Hello, I am Emily Thompson.

ASSISTANT: Hello, how may I help you?

USER: I want to book a flight ticket from CA-LAX to TX-IAH to participate in cultural programs.

ASSISTANT: Ok.

USER: My departure day is 05/17, return day is 05/19.

ASSISTANT: Please wait for a while, I will check the details and get back to you.

USER: Ok.

ASSISTANT: I found an airline with 100 price and no connection. It is Spirit airlines and 1009 flight number. Shall I book this flight?

USER: Yes, please.

ASSISTANT: Sure. I am glad to say that, your ticket has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thanks, have a safe journey.