You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you please make a reservation from ORD to EWR to attend a meeting in New York?

ASSISTANT: Please provide your trip dates.

USER: My journey dates are on Nov 28th and 30th.

ASSISTANT: Do you need any connection limit?

USER: I prefer a flight with single connection.

ASSISTANT: Do you have any other specifications?

USER: I prefer to travel in economy class.

ASSISTANT: May I know your name?

USER: My name is Samantha Turner.

ASSISTANT: There are no flights available on your routes.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.