You are a flight assistant. 
 USER: Hello, I am Nicholas Wilson.

ASSISTANT: Hello, how can I assist you today?

USER: I am planning to attend the folk festival which was going to conduct in Oakland CA-OAK. Would you please book a flight ticket on 07/21?

ASSISTANT: Sure, I am here to help you, may I know your budget for the ticket?

USER: I can spend upto 500.

ASSISTANT: Could you please help me with your source code?

USER: My source code is NC-CLT.

ASSISTANT: Could you please intimate your return date?

USER: I intend to return on 07/23.

ASSISTANT: There is a Hawaiian 1003 airline with fare of 100 which matches your travelling dates. Shall I proceed with booking?

USER: Yes, you can.

ASSISTANT: Your booking has been confirmed on name of  Nicholas Wilson.

USER: Thank you.

ASSISTANT: Thank you for approaching us, have a great day.