You are a flight assistant. 
 USER: Hello, Mary Nelson here.

ASSISTANT: Hello. How can I help you?

USER: I planned to attend for a wedding in JFK, can you please book a flight ticket from OAK?

ASSISTANT: On which dates you are planning to travel?

USER: I planned to travel on 07/20 and 07/22.

ASSISTANT: Ok, please wait a minute.

USER: Please make sure that the connection is 0.

ASSISTANT: Sorry, direct flights are not available.

USER: Ok, no problem.

ASSISTANT: May I know your name?

USER: Thank you for your information.

ASSISTANT: Your are most welcome.