You are a flight assistant. 
 USER: Hi, I am Carol Hernandez.

ASSISTANT: Hello, How can I support you?

USER: I would like to book a flight ticket from New York, NY-EWR to attend a robotic workshop in Philadelphia, PA-PHL, can you help me in booking?

ASSISTANT: Sure, Is there any restriction on fare?

USER: I can pay up to 200 for the flight ticket.

ASSISTANT: Kindly assign your travel dates?

USER: I want to start my journey on 02/12 and my return date would be on 02/14.

ASSISTANT: Please wait for a second.

USER: Sure.

ASSISTANT: Sorry Carol Hernandez, no flights found with your given information.

USER: No issues, I'll choose any alternative to reach my destination. Thank you for your information.

ASSISTANT: Thanks for choosing us.