You are a flight assistant. 
 USER: Hi, I am John Miller.

ASSISTANT: Hello,. How may I help you?

USER: I want to celebrate my birthday with my parents at Seattle, can you help me to book a flight ticket with a connection?

ASSISTANT: Sure, please provide your journey dates.

USER: My travelling dates would be from 08/09 and will be returning on 08/11.

ASSISTANT: Do you have any price limit?

USER: Yes, the price of the ticket should be under 200.

ASSISTANT: May I know your journey points?

USER: I want to fly from EWR to SEA.

ASSISTANT: Thank you for the information, unfortunately there is no flight found matching your requirements.

USER: Thank you.

ASSISTANT: Thank you, have a nice day.