You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you at this moment?

USER: I would like to visit Houston to meet my school friend, please help me in booking a ticket from EWR to HOU.

ASSISTANT: Sure, I am here to help you. Can you please provide your journey dates?

USER: My planned travel dates are on Mar 15 and Mar 17.

ASSISTANT: Do you have any connection limit preference?

USER: I need a flight with single connection.

ASSISTANT: Do you have any other specifications for this trip?

USER: I prefer business class for my trip.

ASSISTANT: May I know your name to proceed further?

USER: My name is Jacob Johnson.

ASSISTANT: Jacob Johnson, there are no flight services available on this route on your provided dates.

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

ASSISTANT: Thank you for contacting us.