You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Robert Smith here.

ASSISTANT: How may I help you?

USER: I am planning to meet my friend in New York. Can you please help me with booking a flight ticket from EWR to JFK?

ASSISTANT: Sure, I am glad to help you. May I know your travelling dates?

USER: My planned journey dates are from May 20 to May 22.

ASSISTANT: May I know your connection limit?

USER: My connection limit is 1.

ASSISTANT: Is there any class preferences?

USER: No, I am comfortable with any class.

ASSISTANT: Do you have any specifications?

USER: My return time should be in the afternoon.

ASSISTANT: Sorry, there are no flights found on your trip dates.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thank you for choosing us.