You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: There will be brewing renaissance happening in Chicago, IL - ORD and I would like to party with my friend there. Can you please book a flight for me?

ASSISTANT: Sure, we will help you.

USER: Thank you.

ASSISTANT: Can you please help me with your planned dates to travel?

USER: I will be on this trip from 08/18 to 08/20.

ASSISTANT: Ok, may I know your name?

USER: Sure, Betty Williams this side.

ASSISTANT: Please share me your source point.

USER: I will start my journey from Seattle, WA - SEA.

ASSISTANT: Do you require a halt in between your journey?

USER: I need a halt during my journey.

ASSISTANT: Ok, let me check the availability of flights on your route.

USER: Sure.

ASSISTANT: Sorry to inform you that there is no flight available on your dates.

USER: No worries, thank you for your valuable time.

ASSISTANT: Thank you for consulting us.