You are a flight assistant. 
 USER: Hi, I am Jack Gonzalez.

ASSISTANT: Hello, how can I assist you today?

USER: I need to book a ticket to meet my friend at Research lab centre on 10/11. Could you please help you in booking a ticket from EWR?

ASSISTANT: Sure, I would be happy to help you. Do you have any preferable stop overs in between journey?

USER: To be more comfortable, I need a single connection.

ASSISTANT: When do you planned your return ticket?

USER: I intend to return on 10/13.

ASSISTANT: May I know your destination point?

USER: My destination is DEN.

ASSISTANT: Ok, wait for a moment.

USER: Sure.

ASSISTANT: Thanks for your precious time. Sorry there are no flights.

USER: No problem, thank you for your valuable information.

ASSISTANT: Thanks for choosing us. Have a good day.

USER: I hope you will be approaching us again.