You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Paul Collins,.

ASSISTANT: How can I assist you?

USER: I am looking for a flight from PHL to AUS, can you help me in booking the flight ticket?

ASSISTANT: Ok, may I know your travelling dates?

USER: Sure, my depart date is on Dec 18 and return date is on Dec 20.

ASSISTANT: Ok, please wait.

USER: Sure, please look for a flight which connection limit is 1.

ASSISTANT: Sorry, no flights found on your route to reserve your ticket.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for choosing us.