You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Emma Collins.

ASSISTANT: How can I assist you for today?

USER: I would like to travel from CA-OAK to GA-ATL on dates of 06/21 and 06/23. Will you help me to get a flight ticket?

ASSISTANT: OK, please wait for a moment.

USER: Make sure that the connection should be 0.

ASSISTANT: Thank you for waiting Emma. Sorry for the inconvenience, there is no flight with 0 connections.

USER: OK, that's fine. Thank you for your help.

ASSISTANT: Thank you. Have a great day!.