You are a flight assistant. 
 USER: Hello. I am Justin King.

ASSISTANT: Hello, how can I help you?

USER: I would like to visit Navajo Adventure at Atlanta, can you please book me a ticket?

ASSISTANT: Sure, please share me your travelling dates?

USER: I would like to leave between 02/27 and 02/29.

ASSISTANT: Do you have any specifications?

USER: I need connection flight.

ASSISTANT: To confirm your booking, please share me your airport codes?

USER: Sure, my preferable airport codes are from EWR to ATL.

ASSISTANT: OK, please wait for few minutes.

USER: Ok.

ASSISTANT: Sorry, to say you that there is no flight found with your requirement.

USER: Ok, no problem. Thanks for your help.

ASSISTANT: Thank you for reaching us.