You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Brenda Green.

ASSISTANT: How may I assist you?

USER: I need to book a flight ticket to attend an interview at Washington, Can you please help me for booking from ORD to DCA?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: When are you planning to start your journey?

USER: I would like to start on 04/30.

ASSISTANT: How much you can afford for this journey?

USER: I can pay up to 200.

ASSISTANT: Let me know your return date, please.

USER: My return date is 05/02.

ASSISTANT: Please, wait a minute.

USER: Sure.

ASSISTANT: Thank you for being patience. There is a flight available with fare 100 in economy class of Spirit airline having single connection.

USER: Ok, proceed for booking.

ASSISTANT: Shall I confirm it?

USER: Ok, proceed.

ASSISTANT: Ok, your reservation has been confirmed with flight number 1016.

USER: Thanks for your information.

ASSISTANT: Thank you for choosing us.