You are a flight assistant. 
 USER: Hi. I am Lisa Wright.

ASSISTANT: Hello, how can I serve you today?

USER: I want to book a flight ticket to attend New York International Auto Show, they are exhibiting more than 400 vehicles from many branded companies. Can you help me in my booking?

ASSISTANT: Sure. May I know your travelling dates?

USER: My journey dates are from 02/13 to 02/15.

ASSISTANT: Do you have any connection limit?

USER: I need a halt in my journey.

ASSISTANT: To proceed booking I need your airport codes.

USER: My airport codes are from Washington, DC - DCA to New York, NY - EWR. I can pay up to 200 for this trip.

ASSISTANT: Please wait for a while.

USER: Ok, Not an issue.

ASSISTANT: Thanks for waiting, there is no flights found on your given requirements.

USER: Ok, Not a problem. Thank you.

ASSISTANT: Thank you for reaching us.