You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Edward Anderson.

ASSISTANT: How can I help you?

USER: I would like to attend for food festival in Dallas, DFW. Can you help me in booking a flight ticket in economy class?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Could you please help me with your travelling dates?

USER: 03/05 is my depart date. 03/07 will be my return date.

ASSISTANT: May I know your source code?

USER: My source airport code is Chicago, ORD.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for being patience, there is a flight available in AA airline, flight number 1005 having price 200 and a lay by. Shall I proceed with booking?

USER: Yes, you can proceed.

ASSISTANT: Your booking has been confirmed on name of Edward Anderson.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us, have a nice day.