You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you help me to book a flight ticket from DFW to PHL?

ASSISTANT: Sure, may I know your connection limit?

USER: Sure, I am looking for a connecting flight.

ASSISTANT: Let me know your travelling dates.

USER: I planned my trip on the dates Mar 27 and Mar 29.

ASSISTANT: Do you have any other requirements?

USER: Yes, I prefer afternoon flight at the time of depart.

ASSISTANT: May I know your name please?

USER: Myself Scott Hernandez.

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

USER: No issue, anyway thank you for checking.

ASSISTANT: Thank you for choosing us.