You are a flight assistant. 
 USER: Hello. I am Susan Wright.

ASSISTANT: Hello, how can I help you?

USER: Can you please reserve me a flight ticket from OAK to IAD?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I will fly on Dec 12 and arrival on Dec 14.

ASSISTANT: Do you need halt in between your journey?

USER: Yes, I need a connecting flight.

ASSISTANT: Sorry, there are no flights found with your given dates.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for opting us.