You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

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

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

USER: Sure, my airport codes are from SEA to EWR.

ASSISTANT: Can you please share your planned travel dates?

USER: I would like to travel on the dates of 26 and 28 on the month of Jan.

ASSISTANT: May I know your connection limit?

USER: Yes, I need a connected flight.

ASSISTANT: Do you have any other requirements?

USER: No.

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

USER: Ok, thanks for your help.

ASSISTANT: Thank you for opting us.