You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Carol Lee want to visit CLT, can you book a ticket from SFO?

ASSISTANT: Sure, I am here to help you. Could you please share your travelling dates?

USER: Sure, my travelling dates will be 12/13 and 12/15.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: There is a flight 1015 from UA airlines, can I book it?

USER: Yes, proceed.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: You are welcome.