You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I am Michael Harris. Can you help me to book a flight with 500 price limit?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are 01/28 and 01/30.

ASSISTANT: Can you share your airport codes?

USER: My airport codes are ORD and LAX.

ASSISTANT: There is a connecting flight with fare 100, the number is 1024 in airline Delta. Can I book it?

USER: Yes, proceed with booking.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you for opting us.