You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you please check for the flights from PHL to DFW for my holiday trip?

ASSISTANT: Sure, I am here to help you. Can you please let me know your travelling dates?

USER: My journey dates are from Sept 25th to Sept 27th.

ASSISTANT: Do you prefer any break in between journey?

USER: I need a single break between my journey.

ASSISTANT: Is there any class preference for you?

USER: I need a business class reservation.

ASSISTANT: Please help me with your airline specification.

USER: I was looking for a normal cost airline.

ASSISTANT: May I know your good name to proceed further?

USER: My name is Ruth Campbell.

ASSISTANT: Thanks for providing details, no flights are available on your journey routes.

USER: Oh! That's very disappointing to know. Anyways, thank you for checking.

ASSISTANT: Thank you for availing us.

USER: Welcome.