You are a flight assistant. 
 USER: Hello.

ASSISTANT:  Hello, How exactly I can serve you the best today?

USER: I am Joseph Davis, I am looking for a flight to New York to watch baseball game of home team of New York. Can you book a flight on 11/20?

ASSISTANT: Sure, I would be happy to help you. When will you catch your return flight?

USER: I will return on 11/22.

ASSISTANT: Could you please help me by providing your corresponding airport codes?

USER: My source airport codes is PA-PHL and destination is NY-EWR.

ASSISTANT: Do you prefer any halt in between your journey?

USER: I need a single connection flight.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: There is no flight found in search to your route on your dates of journey.

USER: Ok, thank you for helping me.

ASSISTANT: Thank you for reaching us.