You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: Edward Martinez here, Can you please help me for flight booking?

ASSISTANT: Sure, I am happy to help you. Can you please tell me the travelling details of your journey?

USER: My airport codes are from SFO to OAK and trip dates are 07/09  and 07/11.

ASSISTANT: Edward, please wait for a moment.

USER: Please make sure that, connection limit should be 1.

ASSISTANT: Sorry, Edward.There are no flights found on your requirement.

USER: It's ok, thank you for checking.

ASSISTANT: Thank you for approaching us, have a nice day.