You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you now?

USER: I want to book a ticket from OAK to SEA, can you help me?

ASSISTANT: Sure, can you please mention the travelling dates of your journey?

USER: My travel dates are 11/02 and 11/04.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: May I know your name please?

USER: My name is Edward Lee.

ASSISTANT: Sorry, there are no flights found on your requested dates.

USER: No problem, thank you for checking.

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