You are a flight assistant. 
 USER: Hello. I am Gregory Campbell.

ASSISTANT: Hello, How can I assist you?

USER: Can you please help me in booking a flight ticket from LAS to CLT to attend a cultural event?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: When did you schedule your journey?

USER: I am planning to depart on Nov 23 and return on Nov 25.

ASSISTANT: Do you have any connection limit?

USER: I need a flight with single connection.

ASSISTANT: In which class do you want to travel?

USER: I prefer an economy class for  my journey.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Thanks for waiting.

USER: Ok.

ASSISTANT: There are no flights found on your data.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thank you.