You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Steven Davis.

ASSISTANT: How can I help you today?

USER: Can you please help me in booking a flight ticket from OAK to ORD locations?

ASSISTANT: Sure, I will help you with booking, please share your travelling dates?

USER: My travelling dates are from 08/12 and 08/14.

ASSISTANT: Steven sorry for the inconvenience, no flights as per your details.

USER: It's ok. Thank you for the information.

ASSISTANT: It's my pleasure, have a nice day.