You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Nicole Young from Oakland. I want to go to ORD next week for attending a business meeting there, can you please book a flight ticket from OAK?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Can you please provide your planned dates of travelling?

USER: I want to take off on 10/02 and confirm my return ticket also on 10/04.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no flights found under your preferable details.

USER: Oh! It's ok no problem, I will go with another airline. Thank you for your information.

ASSISTANT: Welcome, have a great day.