You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Helen Lewis.

ASSISTANT: How can I help you?

USER: I have heard a lot about Philadelphia Zoo where many rare animals will be exhibited.

ASSISTANT: Yes.

USER: I would like to visit Philadelphia Zoo, so can you please book a flight ticket from DFW to PHL?

ASSISTANT: Sure. May I know the travelling dates?

USER: Sure, my journey dates will be 03/27 and 03/29.

ASSISTANT: There is a flight with airline Frontier with connection 1. Can I book it?

USER: That's great to hear. You can please confirm it.

ASSISTANT: Your ticket is booked with number 1028. Happy journey.

USER: Thank you for booking.

ASSISTANT: Welcome.