You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I would like to book a flight ticket with the name John Green, can you help me?

ASSISTANT: Sure, I can help you. May I know where are you planning to go?

USER: I need to reach TX-AUS to attend my sister's engagement.

ASSISTANT: Ok, When do you want to travel?

USER: I like to travel on 06/28 and my return will be on 06/30.

ASSISTANT: Is there any price limit?

USER: The price limit should be 1000.

ASSISTANT: Ok, please wait. May I know your source details?

USER: Ok, my boarding point is CO-DEN.

ASSISTANT: We found a flight matching your request.

USER: May I know the flight details?

ASSISTANT: AA airline with flight number 1018 and price of 100.

USER: You can book the ticket.

ASSISTANT: Your booking is done successfully.

USER: Thanks for your assistance.

ASSISTANT: Thank you for approaching us.