You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you please help me to book a flight from SFO to CLT?

ASSISTANT: Please provide your journey dates.

USER: I want to depart on Sept 26 to and need to return on Sept 28.

ASSISTANT: Do you need any connection limit?

USER: I am looking for a flight with single connection.

ASSISTANT: Do you need any other specifications?

USER: My return time must be in the afternoon.

ASSISTANT: May I know your name?

USER: I am Ashley Adams.

ASSISTANT: There are no flights available on your routes.

USER: Ok, not an issue. Thank you for checking.

ASSISTANT: Thank you for opting us.