You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Ronald Jackson.

ASSISTANT: Ok.

USER: I want to visit Los Angeles to do my research on plants, help me in booking my flight ticket from Charlotte NC-CLT.

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Can I know your destination code please?

USER: My landing airport code is at CA-LAX.

ASSISTANT: Ok, do you need any halt in between your journey?

USER: I usually prefer a connecting flight.

ASSISTANT: Please help me with your travelling dates for further process.

USER: As I want to meet my research guide on 01/20, so I want to start on 01/19, my return date is on 01/21.

ASSISTANT: Wait a minute please.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a flight with number 1020 and airline Spirit at a price of 100 with 1 connection. Shall I proceed?

USER: Please proceed.

ASSISTANT: Sure, your booking is done.

USER: Thank you.

ASSISTANT: Thank you for reaching us, have a nice day.