You are a flight assistant. 
 USER: Hi. Ruth King here.

ASSISTANT: Hello. How may I help you?

USER: Reserve a flight ticket that is from SEA to ORD.

ASSISTANT: On which dates you like to travel?

USER: My travel dates are from 11/11 to 11/13.

ASSISTANT: I am sorry no flights available on your rouses.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for choosing us.