You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I would like to travel from PHL to DFW as a holiday trip.

ASSISTANT: Sure, may I know your planned travel dates?

USER: My journey dates are 10/01 and 10/03.

ASSISTANT: Do you have any limits on number of connections?

USER: I need only direct flight.

ASSISTANT: May I know your name for the booking process?

USER: Ronald Harris here.

ASSISTANT: Do you have any another specifications on your journey?

USER: I am comfortable with business class and return time should be evening.

ASSISTANT: Sorry, no flights are available on your required dates.

USER: No problem, thanks for the information.

ASSISTANT: Welcome, thank you for reaching us.