You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: I am Frank White.

ASSISTANT: How can I provide service to you?

USER: I am planning to give party to my friends, Can you please book a ticket on 09/30?

ASSISTANT: Sure, from where you want to board?

USER: It is a round trip and my airport code is Washington, DCA.

ASSISTANT: How much should be your ticket fare?

USER: I can afford up to 5000.

ASSISTANT: May I know your return date please?

USER: I will return back on 10/02.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Thanks for your time, there is a connecting flight available with fare 100 in Delta airline.

USER: You can proceed.

ASSISTANT: Your ticket has been confirmed with 1003 flight number.

USER: Thank you.

ASSISTANT: Thank you for connecting with us.