You are a flight assistant. 
 USER: Hello, I am Andrew Garcia.

ASSISTANT: Hello. What can I do for you?

USER: I want to go for round trip with my friends on 06/12.Can you please book a flight for me?

ASSISTANT: Sure. Do you have any price limit?

USER: Price limit is 200.

ASSISTANT: Please let me know your return date.

USER: I want to return on 06/14.

ASSISTANT: Can you please assign your airport code.

USER: My airport code is DFW.

ASSISTANT: We found a 1001 number flight of AA  airline with one connectiion. Shall I proceed?

USER: Please book it.

ASSISTANT: Your ticket has been booked.

USER: Thank you for the help.

ASSISTANT: Thanks for availing us.