You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you please book a ticket from OAK to ORD to go for Sports festival?

ASSISTANT: Let me know your travelling dates.

USER: My travelling dates are Mar 19 and Mar 21.

ASSISTANT: Is there any connection limit?

USER: I want single connected flight.

ASSISTANT: Do you have any preference?

USER: My return time is afternoon.

ASSISTANT: Found ticket with Hawaiian airline for price 200. Can I know your name?

USER: Please proceed if it is economy class. I am Melissa Wilson.

ASSISTANT: Ticket is booked in an economy class having flight number 1000.

USER: Thank you.

ASSISTANT: Thank you.