You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: I want to book a flight ticket from DFW to PHL, can you please help me?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: I planned my trip on the dates Nov 12 and Nov 14.

ASSISTANT: Ok, could I have your name please?

USER: Myself Amanda Perez.

ASSISTANT: Ok, do you need direct or connecting flight?

USER: I am looking for a connecting flight.

ASSISTANT: Ok, do you have any other specifications?

USER: No, other specifications.

ASSISTANT: Sorry, there is no flight on your requested travelling dates.

USER: No issue, anyway thank you for checking.

ASSISTANT: You are welcome, have a great day.