You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I want to book a flight ticket to meet my parents at NY. Can you help me?

ASSISTANT: Can I know your travelling dates?

USER: Sure, 10/18 and 10/20 are my trip dates.

ASSISTANT: May I know your travelling airport codes? Please let me know your connection limit.

USER: AUS and EWR are my airport codes. I need a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: I would like to return in the afternoon.

ASSISTANT: Sorry, no flights available on your route.

USER: No issue, I will choose an other alternative.

ASSISTANT: May I know your name?

USER: Thank you for the information. Michael Collins here.

ASSISTANT: Most welcome.