You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: My name is Margret Garcia and I want to go on a short trip to Las Vegas, NV - LAS, Can you please book a flight from NY - EWR?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: When are you planning to start your journey?

USER: I will start my journey on 08/01.

ASSISTANT: Which class would you prefer for your journey?

USER: I am comfortable with any class.

ASSISTANT: Can I have your return date?

USER: Sure, I will be heading back on 08/03.

ASSISTANT: Please, wait a minute.

USER: Sure.

ASSISTANT: Thanks for waiting, there is a flight available with fare 100 in economy class having 1007 as flight number. Shall I proceed with booking?

USER: Please proceed with the booking.

ASSISTANT: Your reservation has been confirmed with UA airline flight.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.