You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I want to attend my friend birthday party which is going to be held in Chicago, ORD. Can you help me with the process of booking a flight ticket?

ASSISTANT: Sure, please provide your travelling dates.

USER: My travel dates are Apr 08 and 10.

ASSISTANT: Ok, From where do you want to start your journey?

USER: I want to start from Oakland, OAK.

ASSISTANT: Ok, Do you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: Ok, Is there any other preferences?

USER: I need a break in my journey.

ASSISTANT: Thank you for providing details, we did not find any flights with your given requirements.

USER: Ok, no issues.

ASSISTANT: May I know your name for documentation purpose?

USER: Brenda Anderson here.

ASSISTANT: Thank you for availing us.

USER: Thank you for sharing the information.

ASSISTANT: Have a nice day.