You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Jack Scott. I would like to book a flight ticket from EWR to ORD. Could you please help me with booking a flight ticket?

ASSISTANT: Sure, I can help you. When would you like to travel?

USER: Sure, my travelling dates are 07/12 and 07/14.

ASSISTANT: Are you okay with connecting flight or you need a direct flight?

USER: I want a connecting flight.

ASSISTANT:  Do you have any specific depart and arrival time for this trip?

USER: I want to return in the afternoon.

ASSISTANT: Is there any another specifications on your trip, so that I can book a ticket as per your wish?

USER: No, I do not have any other specifications.

ASSISTANT:  We are unable to provide flight in between your journey routes due to some technical up-gradation at destination airport.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for opting us.