You are a flight assistant. 
 USER: Hi, I am Stephen Clark.

ASSISTANT: Hello, How can I amend you?

USER: I got a chance to play a small role in movie, I want to attend screening test in Universal Studio in Los Angeles, CA - LAX. Can you help me to book a connecting flight?

ASSISTANT: Sure, Can you share your origin airport?

USER: I want to board from Houston, TX - IAH.

ASSISTANT: How much you can afford for your ticket?

USER: I can afford up to 1000.

ASSISTANT: What are your preferable travel dates?

USER: I want to travel on 07/19 and recur on 07/21.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: We found a Spirit 1017 airline, with airfare 100, available on your specified dates.

USER: Please make it confirm.

ASSISTANT: Your booking is done.

USER: Thank you for your kind service.

ASSISTANT: Thank you for your presence, Have a safe journey with this connecting flight!.