You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am looking for a flight from EWR to LAS, can you help me in booking?

ASSISTANT: Can I know your travel dates?

USER: Sure, my planned travel dates are Mar 09 and Mar 11.

ASSISTANT: Let me know your name.

USER: Sure, myself Scott Hall.

ASSISTANT: Do you have any preference?

USER: I need a flight ticket for a normal-cost Airlines.

ASSISTANT: Connecting flight can be booked with airline Delta for price 200 having flight number 1011.

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

ASSISTANT: Ticket is booked.

USER: Thank you for the service.

ASSISTANT: Thank you.