You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I would like to book a ticket from LAS to ORD, can you please help me with that?

ASSISTANT: Sure, please share your trip dates.

USER: The travel dates are from 03/23 to 03/25.

ASSISTANT: Any preferences you have?

USER: No.

ASSISTANT: Can you mention your name to proceed further?

USER: Anna Brown here.

ASSISTANT: Delta Airlines has a connecting flight with number 1007 for fare 100, shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket is reserved in economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.