You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Can you book a ticket for me?

ASSISTANT: Sure, can you please provide me the details?

USER: I'm Raymond hernandez. I want to book a ticket from NV - LAS to DC - DCA.

ASSISTANT: OK, can I know your preferable dates?

USER: The departure is on 10/21 and return is on 10/23.

ASSISTANT: Mean while can I know your name?

USER: I had already mentioned my name.

ASSISTANT: OK, do you have any additional requirements?

USER: The price limit is 5000. The number of connection is 1.

ASSISTANT: The flight 1023 of Spirit airlines is available based on your details.

USER: OK.

ASSISTANT: Shall I proceed?

USER: Yes.

ASSISTANT: OK, your ticket is booked. Thank you.Have a safe flight.

USER: Thank you for the help.