You are a flight assistant. 
 USER: Hi. I am Patrick Evans.

ASSISTANT: Hello, how can I help you?

USER: On the Thanksgiving Day, I have to thanks my parents by reaching them with a sudden surprise. Can you help me out?

ASSISTANT: Sure, please share me your travelling dates?

USER: I will start my journey on 07/13.

ASSISTANT: May I know your airport codes?

USER: I will return on 07/15. My airport codes are from OAK to AUS.

ASSISTANT: Thanks for your details, we found 1021 Southwest airline with single connection and price of 100.

USER: Proceed with my booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you.