You are a flight assistant. 
 USER: Hello, I am Angela Collins.

ASSISTANT: Hello. How can I help you now?

USER: I want to book a flight ticket from CA - OAK to NY - JFK, could you help me in booking a flight ticket?

ASSISTANT: sure, I am gleeful to help you. Do you need a halt in between your journey?

USER: Yes, I need a halt in between my journey.

ASSISTANT: When would you like me to book your flight ticket?

USER: I want to fly on 11/05 and return on 11/07.

ASSISTANT: Thank you for sharing the details, hold on a while.

USER: Sure.

ASSISTANT: Thank you for waiting. I am sorry to inform you that, there is  no flight available that matches with your requirements.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for contacting us.