You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am John Hall. I would like to book a flight ticket to attend seasonal festival at Dallas, could you help me in booking my flight ticket with price limit 1000.

ASSISTANT: Sure, May I know the dates of travelling?

USER: I would like to travel from 06/19 to 06/21.

ASSISTANT: Can you help me with the source and destination airport codes?

USER: My source is NY-EWR and destination is TX-DFW.

ASSISTANT: Is there any connection limit? I found a flight on your requested dates from your source to destination.

USER: I want single connection flight. May I know the flight details?

ASSISTANT: The flight in Hawaiian airlines and number is 1007.

USER: Please proceed.

ASSISTANT: Your ticket is booked, happy journey.

USER: Thank you for your quick service.

ASSISTANT: Thank you for reaching us.