You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Frank Hall, I want to meet my brother at Charlotte, can you please help me to book my flight ticket from LAS to CLT?

ASSISTANT: Sure, may I know your planned travel dates?

USER: Sure, I will depart on Aug 7th and I will return back on Aug 9th.

ASSISTANT: Is there any class preference for you?

USER: No class preference.

ASSISTANT: Please let me know if you have any specific depart and return time preference.

USER: I want to depart in the evening.

ASSISTANT: May I know your connection limit?

USER: I prefer for a single connection flight.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We found an airline: Delta, flight number: 1025 and price is 200 with one connection.

USER: Happy to hear that, you can book the ticket for me.

ASSISTANT: Your flight ticket has been reserved in economy class. Your depart time is 23:00PM.

USER: Thank you very much for your help.

ASSISTANT: Thank you for reaching us.