You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Ashley Miller.

ASSISTANT: How can I help you?

USER: I would like to visit Washington Monument with my wife on our marriage anniversary. Can you please book the ticket with 0 connection?

ASSISTANT: That's great, can you please provide your travel dates for booking flight ticket?

USER: The dates are from 11/12 to 11/14.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Can you please mention your airport codes?

USER: The airport codes are SFO and DCA.

ASSISTANT: Wait a moment.

USER: Ok.

ASSISTANT: Sorry as per your requested dates there is no flight available with 0 connection.

USER: That's fine. Thank you for your time.

ASSISTANT: Thank you for approaching us.