You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Carolyn Lee.

ASSISTANT: How may I guide you today?

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

ASSISTANT: Sure, I will help you with that. Can you please share your preferable journey dates?

USER: My planned travel dates are Apr, 8 and Apr, 10.

ASSISTANT: Do you have any class limit?

USER: I want to travel in economy class.

ASSISTANT: Is there any connection limit?

USER: I need single connection.

ASSISTANT: Do you have any specifications?

USER: My depart and return timings should be at afternoon.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: That's ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.