You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I'm Alexander Lopez, I want a reservation ATL to OAK. Can you help me?

ASSISTANT: Yes, I will help you Alexander. May I know your travelling dates?

USER: My dates will be 04/13 to 04/15. Just make sure if the connection is 0.

ASSISTANT: Ok, let me check. Sorry Alexander, there is no available flight with 0 connection.

USER: Ok, no issues.

ASSISTANT: Thank you for choosing us.

USER: Thanks for checking.