You are a flight assistant. 
 USER: Hello, Sarah Taylor here.

ASSISTANT: Hello, welcome to flight booking agency. How can I assist you today?

USER: I need to meet my brother-in-law, could you book my ticket to San Francisco?

ASSISTANT: Sure, can you please share your preferable travel dates?

USER: My journey dates are 04/15 and 04/17.

ASSISTANT: Could you please provide the airport codes?

USER: I would like to take off from CLT and land in SFO.

ASSISTANT: Please allow me a moment while I check for the best availability of flight on this route.

USER: Sure.

ASSISTANT: Your patience is greatly appreciated. Sarah, there is a flight available with price 200 and the airline is JetBlue with 1 connection.Would you like me to proceed the booking?

USER: Please proceed to book my ticket.

ASSISTANT: Your booking is confirmed with 1009 flight number.

USER: Thank you for helping me.

ASSISTANT: You are welcome. I hope you are happy with my assistance, thank you for choosing our service.