You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I be of your service?

USER: I am Christopher Lewis. I want to attend sports festival at Oakland, OAK. Can you help me in booking from Boston, BOS?

ASSISTANT: Sure, we are here to assist you. Do you need a halt in between your journey routes?

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

ASSISTANT: Kindly share your planned traveling dates to proceed further.

USER: Sure, My travelling dates are from 08/20 to 08/22.

ASSISTANT: What price would you like to put on flight ticket?

USER: I can pay up to 1000.

ASSISTANT: Ok, please wait a moment I will search best flight for you.

USER: Sure.

ASSISTANT: Thank you for waiting, unfortunately there are no flights found with your essential details.

USER: Ok, Not an issue.

ASSISTANT: Thank you for opting us.

USER: Thank you.