You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I have a doctor appointment, can you book a ticket from JFK to EWR?

ASSISTANT: It's my pleasure to help you, may I know your planned trip dates?

USER: Sure, my planned departure and return travel dates are 18th and 20th of Jan.

ASSISTANT: Do you have any connection limit preference?

USER: Yes, I prefer single connected flight.

ASSISTANT: Can you help me with your name please?

USER: My name is Matthew Rodriguez.

ASSISTANT: Thank you for sharing the details. I am afraid that there are no flights available for the given dates.

USER: That's ok, thank you for giving the information.

ASSISTANT: Thank you for reaching us.