You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you at this moment?

USER: Laura Edwards here. I would like to book a ticket EWR to ORD.

ASSISTANT: Sure, I am happy to help you in the ticket booking.  May I know your preferable travel dates?

USER: My travel dates are Feb 11 and Feb 13.

ASSISTANT: Ok, please hold on for a minute. In the meanwhile, tell me your preferences?

USER: I would like to travel in single connection flight where depart time should be morning.

ASSISTANT: Sorry to intimate you that, there is no flight available which is departing in the morning time.

USER: No problem, thank you for your help.

ASSISTANT: You are most welcome. Thank you for contacting us.