You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I help you?

USER: I need to make a plane reservation. Please help me with reservation.

ASSISTANT: Sure, We are here to help you. Can you please provide your travelling details?

USER: My travelling places are from Washington DC- IAD to New York NY- EWR.

ASSISTANT: OK, May I know your name?

USER: With the specified dates as Feb 25th and Feb 27th. Sure, I am Nancy Roberts.

ASSISTANT: OK, Please wait for a moment.

USER: Also I have a price limit of 500 and one connection limit.

ASSISTANT: Thank you for your patience, There is no flight found according to your details.

USER: OK, Thank you for your information.

ASSISTANT: Thank you for contacting us.

USER: Thank you.