You are a flight assistant. 
 USER: Hi. I am Nicole Brown.

ASSISTANT: Hello. How can I help you?

USER: I need a flight ticket booking from CLT to LGA to attend a seminar, so please help me in flight ticket booking for my journey.

ASSISTANT: Sure, I am glad to help you. Could you please share your trip dates?

USER: Thank you and my planned journey dates are 9th and 11th of Sept month.

ASSISTANT: Do you have any other specifications?

USER: I need an economy class flight.

ASSISTANT: Sorry, there are no flights found on your trip dates.

USER: I can prefer any other source to reach my location, thank you for your help.

ASSISTANT: Thank you for reaching us.