You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: Myself Barbara Williams. I want to visit to ORD from SFO for the vacation in the holidays.

ASSISTANT: Sure, can I know your travel dates?

USER: So, please book a ticket on 10/10 and 10/12.

ASSISTANT: Ok. The flight 1006 of AA airlines is available on your requested dates. Shall I book the ticket for you?

USER: Can I know the price of the ticket?

ASSISTANT: The price is 100.

USER: Sure, please proceed it.

ASSISTANT: Your ticket is booked.

USER: Thank you for helping me.

ASSISTANT: Welcome.