You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I am Brian Clark from New York. Could you please help me in flight ticket booking process from EWR to OAK?

ASSISTANT: Sure, I will help you with that. Can you please help share your preferable journey dates?

USER: Thank you, I want to take off on Jan 08 and please confirm my return ticket also on Jan 10.

ASSISTANT: Do you have any connection limit?

USER: Yes, I want a direct flight.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: Oh! It's ok no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your information.