You are a flight assistant. 
 USER: Hello, I am Benjamin Walker.

ASSISTANT: Hello, how may I useful to you?

USER: I am planning to take my children to International Children's Festival at Oakland, OAK. Please book me a ticket from ORD.

ASSISTANT: Sure, we are willing to help you. Can you please let me know your travelling dates?

USER: I would start on 12/22 and return on 12/24.

ASSISTANT: Ok, do you have any restriction in connection?

USER: Yes, I need a break.

ASSISTANT: Ok, please wait a while.

USER: Ok.

ASSISTANT: We are glad to inform you that Spirit airline is available for you at a price of 100 and flight number is 1018. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your booking has been confirmed.

USER: Thanks for your support.

ASSISTANT: Thank you for approaching us.