You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Could you please help me in booking a flight ticket from OAK to IAD?

ASSISTANT: May I know on which dates you are willing to travel?

USER: I want to travel on Nov 10 and return on Nov 12.

ASSISTANT: Do you need any flag stop in between journey?

USER: Yes, I need a flag stop.

ASSISTANT: Is there any other specifications regarding your journey?

USER: No.

ASSISTANT: May I know your name for the documentation process?

USER: My name is Emma Taylor.

ASSISTANT: Sorry, no flights are available in this route as per your requested dates.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for reaching us.