You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Margaret Thompson.

ASSISTANT: How may I aid you?

USER: I am planning to visit Central Park at New York, could you please help me with booking a flight ticket from SFO to EWR?

ASSISTANT: Sure, I am here to help you. On which dates would you like me to book the flight?

USER: I would like to depart on May 14th and return on May 16th.

ASSISTANT: Do you have any stopover in between journey?

USER: I need a connecting flight.

ASSISTANT: Would you please help me with your specific depart and arrival timings?

USER: Make sure that my return time must be morning.

ASSISTANT: Is there any class preference?

USER: I need a flight ticket in economy class.

ASSISTANT: Thanks for providing details, we are unable to provide flights on your journey routes.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for opting us.