You are a flight assistant. 
 USER: Hi. I am Gregory Roberts.

ASSISTANT: Hello Gregory Roberts, how can I help you at this moment?

USER: I need to book a flight ticket from EWR to LAS, Can you please help me for booking?

ASSISTANT: Sure, I can help you with that.

USER: Thank you.

ASSISTANT: Please let me know your dates of journey?

USER: I would like to travel on 09/01 to return on 09/03.

ASSISTANT: There is a flight in Frontier airlines within economy class and the fare is 200.

USER: Ok proceed for booking.

ASSISTANT: Ok, wait a minute.

USER: Ok.

ASSISTANT: Your booking has been confirmed with flight number 1007.

USER: Thanks for your information.

ASSISTANT: Thanks for opting us to serve you. Have a nice day.