You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you for the day?

USER: I am planning to visit the central park which is located in New York, EWR. Can you avail me to book a flight ticket?

ASSISTANT: When you are willing to travel?

USER: My travel dates are Oct 15 and 17.

ASSISTANT: Can you help me with your source code?

USER: My source is from Philadelphia, PHL.

ASSISTANT: May, I know your good name?

USER: Sure, Stephen Adams here.

ASSISTANT: Do you have any connection limit?

USER: Yes.

ASSISTANT: Do you have any other requirements?

USER: I need to travel in economy class.

ASSISTANT: Sorry, we found no flights on your given dates.

USER: Ok, thanks for the information.

ASSISTANT: Thank you for reaching us.