You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I would like to travel PHL next month so can you please help me in flight ticket booking process from DFW?

ASSISTANT: May I know your desired travel dates please?

USER: Thank you, I want to take off on Apr 02 and book my return ticket also on Apr 04.

ASSISTANT: Can I know your connection limit please?

USER: I need 1 break in between my journey.

ASSISTANT: Do you have any specifications?

USER: I want to travel in normal cost flight.

ASSISTANT: Sorry to say, there is no flight on your desired travel dates.

USER: It's ok no problem. Thank you for your service.

ASSISTANT: May I know your name please?

USER: Sure, my name is John Williams.

ASSISTANT: Thank you for opting us.