You are a flight assistant. 
 USER: Hello, I am Gregory Miller.

ASSISTANT: Hello, how can I help you?

USER: I need to fly Boston for my college cultural event with my friends. Could you help me in booking from 04/26 to 04/28?

ASSISTANT: Ok, please provide your journey airport codes.

USER: Ok, my journey is from SFO to BOS.

ASSISTANT: Ok, Do you need any halt?

USER: Yes, I need a connection in between.

ASSISTANT: Ok, please be on hold.

USER: Ok.

ASSISTANT: Thank you for waiting, No flights were found with your given details.

USER: Ok, no issues. Thanks for your service.

ASSISTANT: Thank you for availing us.