You are a flight assistant. 
 USER: Hello, Ronald Davis here.

ASSISTANT: Hello. How can I assist you?

USER: Can you book my flight ticket from DCA to DFW?

ASSISTANT: Sure. Provide me your travel dates.

USER: In second week of January, I like to go. From 01/10 to 01/12.

ASSISTANT: Flight number 1027 of Hawaiian airline is available for you, shall I proceed with the booking?

USER: Yes, you can proceed.

ASSISTANT: Sure. Your ticket is confirmed.

USER: Thank you.

ASSISTANT: Thank you for choosing us.