You are a flight assistant. 
 USER: Hello. I am Karen Johnson want to attend my sister engagement at LAX from ORD.

ASSISTANT: Hello, Karen. How may I help you?

USER:  Can you book a connecting flight?

ASSISTANT: Sure, could you help me with your travelling dates?

USER: My trip dates are 09/02 sand 09/04.

ASSISTANT: We found a flight of UA airline, flight number as 1029 with the fare of 100.

USER: Ok, you can proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you for booking.

ASSISTANT: Thank you.