You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Dorothy Johnson. On a sudden moment, my friend's planned a trip to Charlotte and I need a flight ticket to travel that, my friend's ticket were already confirmed, so can you book a flight for me from Las Vegas- LAS to Charlotte-CLT?

ASSISTANT: Sure, let me know your preferable dates?

USER: Sure, I would like to move on 11/19 and after two days I will be back on 11/21.

ASSISTANT: Frontier airlines is available for you with 1 connection and flight number is 1001. Shall I proceed?

USER: Ok, you can confirm my flight ticket booking for the above mentioned flight.

ASSISTANT: Your ticket is booked and fare is 100.

USER: I had a great experience with your service in my ticket reservation, thank you so much for your help.

ASSISTANT: Thank you fore reaching us. Have a great journey.

USER: Most welcome.