You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am Christopher Taylor. I want to visit to Houston on 02/18, can you please book me a return ticket on 02/20?

ASSISTANT: Sure, we are here to help you. May I know where do you want to travel?

USER: My destination airport code is Houston, TX-IAH.

ASSISTANT: Please share your source point?

USER: My source airport code is Orlando, FL-MCO.

ASSISTANT: OK, please wait a moment.

USER: Ok.

ASSISTANT: We found an airline AA with flight 1017 having a stopover and price is 100.

USER: Ok, please proceed to book.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.