You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you aid me to book my ticket from Sep 11 and Sep 13 respectively.

ASSISTANT: Sure, can you please let me know your region airport codes?

USER: My airport codes are PHL to OAK?

ASSISTANT: Do you have any connection limit preference?

USER: I prefer for single connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No other preferences for me.

ASSISTANT: Could you help me with your name please?

USER: Janet Roberts here.

ASSISTANT: Delta Airlines is providing a connecting flight with 1013 flight number and the airfare is 100. Shall I proceed with this flight?

USER: Please proceed for booking.

ASSISTANT: For a economy class your ticket is booked.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us!.