You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today from my end?

USER: I am Brain Phillips. Can you help me booking a flight ticket from OAK to EWR?

ASSISTANT: Sure, I am here to help you out. Please provide me your  trip dates.

USER: I will start on 07/07 and return on 07/09.

ASSISTANT: Please provide me your requirement.

USER: I need break in my journey.

ASSISTANT: Please allow me a moment.

USER: Sure.

ASSISTANT: Sorry Brain Phillips, there is no flight in your route.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.