You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Gary Evans.

ASSISTANT: How can I assist you?

USER: Can you help me to book a flight ticket from LAS to CLT?

ASSISTANT: Sure, can you please let me know your travel dates?

USER: Yes, I will be starting on 08/23 and return date is 08/25.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: There is a flight with single connection available in UA airlines and the ticket fare is 100 only. Are you comfortable with this flight?

USER: Yes, please book it for me.

ASSISTANT: Your ticket is booked successfully with the flight-1013.

USER: Thank you for your service.

ASSISTANT: You are welcome and thank you for choosing us.