You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I need to buy a plane ticket from ORD to IAD. Please help me in that.

ASSISTANT: Sure, please share your planned trip dates?

USER: My trip dates are from Sept, 30 to Oct, 02.

ASSISTANT: Do you have any connection limit?

USER: No, I do not have any specifications.

ASSISTANT: Any other requirements to be met?

USER: No.

ASSISTANT: May I know your name?

USER: Samantha Roberts.

ASSISTANT: United airlines flight- 1025 of price 100 with multiple connection in economy class matches your given details, shall I proceed?

USER: Please proceed.

ASSISTANT: Ok, your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.