You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Gregory Roberts here, can you help me finding flights from EWR to OAK to attend my college anniversary?

ASSISTANT: Sure, on which dates you are planned to fly?

USER: I am going to start my fly on 10/27 and I am going to return on 10/29.

ASSISTANT: Do you have any connection limit?

USER: Make sure with 0 connection.

ASSISTANT: Sorry, there is no flight with 0 connection limit.

USER: Oh! It's ok, no problem. Thank you for your services.

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