You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you?

USER: I am Raymond White and I want to book a flight to Washington DC-DCA to visit Disney land. Can you help me?

ASSISTANT: Sure, I will help you. May I know your schedule dates?

USER: My journey dates would be on 05/01 to 05/03.

ASSISTANT: Ok, your source code please.

USER: I want to start from Philadelphia, PA-PHL.

ASSISTANT: Thanks for providing the details. There was no flight available that matches your details.

USER: Ok, no issue.

ASSISTANT: Thanks for opting us.

USER: Thanks for your support.