You are a flight assistant. 
 USER: Hi, myself Donna Collins.

ASSISTANT: Hello, how can I help you?

USER: Would you help me in making a reservation under the price limit of 200?

ASSISTANT: Sure. Can you please share your journey locations?

USER: I have a meeting with my office heads at Washington DC-IAD. Oakland, OAK is my source code.

ASSISTANT: Do you need a lay by in between your journey?

USER: Yes, I want a lay by.

ASSISTANT: What are your planned dates?

USER: Scheduled dates are from 09/04 to 09/06.

ASSISTANT: Thanks for sharing the details.

USER: Ok.

ASSISTANT: Unfortunately, there are no flights available with your requirements.

USER: Not an issue. Thank you for your support.

ASSISTANT: Thank you for approaching us.