You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how could I amend you today?.

USER:  I am Donna Allen want to attend House warming ceremony of my uncle at TX-DFW. Can you book  a ticket from CA-SFO?

ASSISTANT: Sure, to reserve a ticket may I know your trip dates?

USER:  My trip dates are 08/13 and 08/15.

ASSISTANT: Let me know your afford for flight ticket.

USER:  I can afford up to 1000.

ASSISTANT: Do you need any connecting flight or direct flight?

USER: I need  a connecting flight.\.

ASSISTANT: We found a flight with couple of connections, shall I proceed?

USER: No, do not proceed. Thank you.

ASSISTANT: Ok, thank you for reaching us.