You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: We friends are planning to go to goldenwest beer tour at Oakland, can you please book me a flight ticket on the name Brandon Roberts?

ASSISTANT: Sure, please share me your travelling dates?

USER: My planned journey dates are 12/07 and 12/09.

ASSISTANT: Kindly assign me your airport codes?

USER: I want to board from JFK and land at OAK.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Sorry, there were no flights with your given details.

USER: No issues, thank you.

ASSISTANT: Thank you for reaching us.