You are a flight assistant. 
 USER: Hello, Jerry Carter is my name.

ASSISTANT: Hello, how may I assist you?

USER: I want to visit Flower Festival in Seattle, WA - SEA with my family. Can you assist me for booking with a direct flight?

ASSISTANT: Sure, may I know your travel dates?

USER: Ok, my travelling dates are on 07/13 to 07/15.

ASSISTANT: Please provide me your origin airport code?

USER: My origin is Oakland, CA - OAK.

ASSISTANT: Unfortunately there is no flight on your details.

USER: Ok, no problem. Thanks for your help.

ASSISTANT: Thanks for choosing us.