You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, what do you want me to do for you today?

USER: I am Melissa Nelson, I want to meet my sister who is staying at Washington DC- IAD. Help me out with reservation.

ASSISTANT: Sure Melissa, we are here to help you only. Now may I please know your journey details?

USER: My departing date should be on 12th June from Atlanta, GA- ATL and return date on June 14th.

ASSISTANT: OK, please give me a moment to check.

USER: I don't want to have any connection with in my journey and I have a price limit of 200.

ASSISTANT: OK, as you wish. But, I am sorry to inform you that there is no flight available according to your need.

USER: OK, no issues. Thank you for the information.

ASSISTANT: Thanks for reaching out to us. Have a nice day ahead.