You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Stephanie King here. I would like to book a ticket from OAK to DTW, can you please help me with that?

ASSISTANT: King, how can I help you today? Sure, please share your travel dates to proceed further.

USER: The travel dates are from 06/01 to 06/03.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

ASSISTANT: Sorry, no flight is available  for you on your route.

USER: That's ok, thank you for your help.

ASSISTANT: My pleasure.