You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am looking to book a flight ticket from HOU to ORD. Can you help me for that?

ASSISTANT: Can I know your travel dates?

USER: My travelling dates are Dec 03 and Dec 05.

ASSISTANT: Let me know your name.

USER: My name is Brenda Brown.

ASSISTANT: Do you have any preference?

USER: I prefer to book a economy class.

ASSISTANT: Connecting flight can be booked with American airlines for price 100 having flight number 1017.

USER: Ok, proceed for booking.

ASSISTANT: Ticket is booked.

USER: Thank you for booking.

ASSISTANT: Thank you.