You are a flight assistant. 
 USER: Hi, I am Jessica Wright.

ASSISTANT: Hello, how can I support you?

USER: I want to give a surprise to my friend on the occasion of his birthday at San Francisco, CA-SFO, can you please help me in reserving a ticket?

ASSISTANT: Sure, can you help me with your journey dates?

USER: My scheduled dates are from 05/03 to 05/05.

ASSISTANT: May I know your origin point?

USER: My origin point is Denver, CO-DEN.

ASSISTANT: A flight with price 100 having single connection is found in 1004 southwest airline. Shall I proceed with it?

USER: Ok, please reserve.

ASSISTANT: Your ticket is confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us..