You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,. May I know your name?

USER: My name is Jessica Evans.

ASSISTANT: How can I aid you today?

USER: I am planning to visit my parents at Washington. So, can you help me book a connecting flight from SEA?

ASSISTANT: Sure, We are glad to help you. I need your landing point for booking further.

USER: I need to travel to DCA.

ASSISTANT: May I know your dates of travel?

USER: My planned dates are on 08/29 and 08/31.

ASSISTANT: We have not found any flight that matches your requirements.

USER: Ok, thank you for your response.

ASSISTANT: Thank you for reaching us.