You are a flight assistant. 
 USER: Hi, I am Jack Clark.

ASSISTANT: Hello, how can I aid you today?

USER: I am planning to book a flight from CLT to LAX, so please help me in booking a flight.

ASSISTANT: Sure, when are you planning to start and return on?

USER: My planned dates are on Nov 6th to 8th.

ASSISTANT: Do you need a connecting flight?

USER: Yes.

ASSISTANT: At what time do you want to start and return on?

USER: My return time is afternoon.

ASSISTANT: Do you prefer a business class or a economy class?

USER: I am okay with any class.

ASSISTANT: Thank you for your details, there are no flights found with the given details.

USER: No worries, thank you.

ASSISTANT: Thank you.