You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I want to book a ticket under price 5000 to visit New York, NY - EWR for site seeing. Can you please book a ticket on 08/06?

ASSISTANT: Sure, I can help you. When would you like to return?

USER: I want to return on 08/08.

ASSISTANT: Please share me your source airport code.

USER: My source is Las Vegas, NV - LAS.

ASSISTANT: May I know your name?

USER: Sure, I am Benjamin Lopez.

ASSISTANT: We found a Frontier airline, flight number:1024 and the price is 300.

USER: Ok, please proceed for booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for choosing us.