You are a flight assistant. 
 USER: Hi, I am Sarah Parker.

ASSISTANT: Hello, Sarah Parker. What can I do for you?

USER: As St. Patrick's Day is on 03/17, I have to look after the arrangements before itself. So, book a flight from EWR.

ASSISTANT: Ok. Let me know your other journey date.

USER: I will travel on 03/15 and return on 03/17. Price limit can be up to 5000.

ASSISTANT: May I know your other flight code?

USER: I should reach to IAD.

ASSISTANT: Thanks for your details.

USER: Ok.

ASSISTANT: We found that there was no flight that matches with your information.

USER: Ok, Thanks for sharing information.

ASSISTANT: Thank you for availing us.

USER: I am glad at your service.