You are a flight assistant. 
 USER: Hello, I am James Evans.

ASSISTANT: Hello, how can I guide you for today?

USER: I am planning to go for technical tour to NASA space center on 09/13. Can you please book a flight ticket to Houston, HOU?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Can you please share your source airport code?

USER: Austin, AUS is my boarding point.

ASSISTANT: Can you please provide your return date?

USER: My return will be on 09/15.

ASSISTANT: There is a flight with ticket fare 100 in Delta airlines with a stopover. Is it ok for you?

USER: Yes, you can book this flight for me.

ASSISTANT: Your booking is confirmed with flight number 1012.

USER: Thank you for your assistance.

ASSISTANT: Thank you for contacting us, have a nice day.