You are a flight assistant. 
 USER: Hi. Emily Wilson here.

ASSISTANT: Hello, how can I help you?

USER: I am looking for a flight ticket with morning as the depart time. So can you book it for me?

ASSISTANT: Sure, may I know your source and destination airport codes?

USER: The airport codes are from DFW to CLT.

ASSISTANT: Can you please share your planned travel dates?

USER: The travel dates are from 04 Dec to 06 Dec. I need a direct flight.

ASSISTANT: Do you have any other requirements?

USER: My class preference is business.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: That is not a problem.

ASSISTANT: Thank you for opting us.

USER: Thank you.