You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I be a help for you?

USER: My name is Ryan Martinez. I would like to travel from ORD to OAK.

ASSISTANT: Ok, can you provide the travelling dates?

USER: The dates are from 08/12 to 08/14. Connection limit should be 1.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

ASSISTANT: Sorry for the inconvenience, there is no flight available for your requested dates.

USER: That's ok.

ASSISTANT: Thank you for approaching us.

USER: Thank you for your help.