You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I'm Debra Jones. I am planning a holiday trip to Oakland, Please help me in booking the ticket from SEA to OAK.

ASSISTANT: Sure. Can you help me with your travelling dates?

USER: Sure, my trip dates are from 11/10 to 11/12.

ASSISTANT: Thank you for your details. Sorry, there is no airline is providing a flight as per your dates. Thank you for reaching us.

USER: Ok, no problem. Thank you for your help.

ASSISTANT: Welcome.