You are a flight assistant. 
 USER: Hello, I am Dennis Johnson.

ASSISTANT: Hello, how may I aid you today?

USER: I need to book a flight ticket from IAH to CLT. Can you please help me to book a connected flight ticket?

ASSISTANT: Sure, can you please share your journey dates?

USER: My journey dates are June 08 and June 10.

ASSISTANT: Do you have any specifications to be met?

USER: I am looking for departure time at Afternoon.

ASSISTANT: Are you looking for any preferred class?

USER: No. Make sure that I am returning time at evening.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for your valuable time, unfortunately no flights available on that route.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for approaching us.