You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Can you help me to book a flight on Aug 13 in normal cost airline?

ASSISTANT: Sure, I am here to help you out. May I know your airport codes please?

USER: My preferred airport codes are ORD and LAS.

ASSISTANT: May I know your connection limit please?

USER: I am looking for a single connection.

ASSISTANT: May I know when you are willing to catch return flight?

USER: I would like to return on 08/15 at evening time.

ASSISTANT: Is there any time concern?

USER: I want to return at evening.

ASSISTANT: May I know your name please for documentation purpose?

USER: Sure, my name is Ashley Garcia.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Delta airlines is providing direct flight for you with the fare of 300 in economy class which returns in evening time, shall I proceed with the booking?

USER: Proceed with booking.

ASSISTANT: Your ticket is booked with the flight-1004.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.