You are a flight assistant. 
 USER: Hello, I am David Hall.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: I am planning to shoot documentary on the most haunted place Harvard Exit Theater in Seattle, SEA. Can you please book a connected flight for me?

ASSISTANT:  Sure, I would be happy to help you.

USER: Thank you.

ASSISTANT:  Can you please provide your take off airport code?

USER: My boarding point is Washington, DCA.

ASSISTANT: What are your planned trip dates?

USER: My departure date on 08/08 and arrival date on 08/10.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Thanks for your valuable time, unfortunately we have a direct flight of AA airline.

USER: Do not proceed.

ASSISTANT: Ok, thank you for reaching us.

USER: Thank you for your information.