You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Nancy Hernandez.

ASSISTANT: How can I help you?

USER: I am planning to book a ticket from ORD to EWR. Can you please help me out to book a ticket for me?

ASSISTANT: May I know your travel dates?

USER: I would like to travel on Feb 16 and return back on Feb 18.

ASSISTANT: Ok, do you have any preferences?

USER: Yes, I am looking for a connecting flight.

ASSISTANT: Delta airlines is providing flight with single connection and the flight fare is 100.

USER: That's fine, please proceed the booking.

ASSISTANT: Your booking is confirmed.

USER: Thank you for your your service.

ASSISTANT: Thank you for reaching  us.