You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you help me to book a connecting flight from OAK to ORD?

ASSISTANT: May I know your travelling dates?

USER: My travelling dates are 13 and 15 of May.

ASSISTANT: May I know your good name?

USER: I am George Moore.

ASSISTANT: Do you need a connecting flight?

USER: I need a connecting flight.

ASSISTANT: May I know your airline preferences?

USER: I prefer to travel in normal cost.

ASSISTANT: Flight-1011 is available for you with 1 connection at the price of 200 by Delta airlines. Can I book it?

USER: Please proceed to booking.

ASSISTANT: Your ticket is reserved, thank you for choosing us.

USER: Thanks for helping me.