You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you?

USER: I am planning to visit Austin to meet my friend, can you please book me a ticket from PHL to AUS?

ASSISTANT: Sure, on what dates are you planning to travel?

USER: I am planning my journey on the dates of Jan 31 and Feb 02.

ASSISTANT: Please let me know your class preference.

USER: I am comfortable with any class.

ASSISTANT: At what time time would you like to depart and return?

USER: I prefer afternoon returning flight.

ASSISTANT: How many connections do you need?

USER: I prefer connecting flight for this journey.

ASSISTANT: On what name should I make the reservation?

USER: Please reserve the ticket with my name Benjamin Miller.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thank you for waiting, I regret to inform you that there are no flights obtained on your journey dates to book a flight ticket.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you for approaching us.