You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am Kimberly Roberts, looking for a flight booking service. Can you help me to book a flight?

ASSISTANT: Sure, can I know the take off and landing airport codes please?

USER: I am planning to visit Chicago ORD in this weekend from my location SEA.

ASSISTANT: Could you provide the travel dates please?

USER: My preferred journey dates are 12/09 and 12/11.

ASSISTANT: Give me a moment please.

USER: Sure.

ASSISTANT: There is flight in Delta airline with price 100, can I book it?

USER: Yes, proceed with booking.

ASSISTANT: Your ticket has been booked with flight number 1004.

USER: Thank you.

ASSISTANT: Thank you for approaching us.