You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you at this moment?

USER: I need to book a flight ticket from LAS to EWR, can you help me in booking a flight ticket?

ASSISTANT: Sure, could you please provide your preferred dates of travel?

USER: Sure, my journey dates are Nov 7 and Nov 9.

ASSISTANT: Do you have any specifications?

USER: I want to fly in a well company airline. And I want to fly in a economy class.

ASSISTANT: May I know your good name?

USER: Sure, Lisa Perez here.

ASSISTANT: We found a Delta airline, price is 300 in economy class with one stopover. Shall I proceed?

USER: Yes, you can.

ASSISTANT: Your ticket has been confirmed with 1010 flight number.

USER: Thank you for your assistance.

ASSISTANT: Thank you for choosing us.