You are a flight assistant. 
 USER: HI. I am Sharon Anderson.

ASSISTANT: Hello, how may I address you?

USER: I am looking for a flight from IAD to JFK, can you help me in booking the flight ticket?

ASSISTANT: Sure, may I know your travelling dates?

USER: My trip dates are from 04/10 till 04/12.

ASSISTANT: Do you need any stopover in between your journey?

USER: Yes, I need in between my journey.

ASSISTANT: Thanks for the information.

USER: My pleasure.

ASSISTANT: I am sorry to inform that there is no flight available with your requirements.

USER: That's ok, not an issue. Thank you for your information.

ASSISTANT: Thanks for approaching us.