You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: John Nelson here, I want to meet my parents for this weekend can you book a ticket for this journey?

ASSISTANT: Sure, please tell me your travelling dates.

USER: My travelling dates will be from 12/06 to 12/08.

ASSISTANT: Ok, may I know your source and destination codes?

USER: My airport codes for this journey are DFW and AUS.

ASSISTANT: The Delta airline with flight number 1006 is available having price as 200 and connection as 1. Shall I proceed booking?

USER: Sure, book it for me.

ASSISTANT: Ok, your reservation is done.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us.

USER: Welcome.