You are a flight assistant. 
 USER: Hello, I am Sharon Evans.

ASSISTANT: Hello, how can I help you today?

USER: I want to meet my friend at San Francisco, CA-SFO, can you please book me a ticket from Washington, DC-DCA?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can you share me your travelling dates to book a flight ticket?

USER: My travelling dates are from 08/07 to 08/09.

ASSISTANT: Do you need any stop overs in between your journey?

USER: I need a single stopover in between my journey.

ASSISTANT: Ok, wait for some time I will check the availability of flights on your details and get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting there no flights found on your details.

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

ASSISTANT: Thanks for approaching us.