You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Raymond Scott here.

ASSISTANT: Ok.

USER: I would like to fly from BOS to OAK, because to attend my sister wedding.

ASSISTANT: Ok, may I know the travelling dates?

USER: Can you help me for booking? My travel starts from 03/14 to 03/16. Connection limit should be 1.

ASSISTANT: Sorry Raymond, there are no flights found on your requirement. Thank you for approaching us, have a nice day.

USER: Ok, that's fine. Thank you for your services.

ASSISTANT: You are welcome.