You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Can you help me to book a flight ticket from CLT to JFK?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: My travelling dates are 12 and 14 of Sep.

ASSISTANT: Do you have any specifications about flight connections?

USER: I need a connecting flight.

ASSISTANT: Do you have any preferences about class?

USER: No.

ASSISTANT: Please mention your name.

USER: I am Amy Wright.

ASSISTANT: There are no flights found under your preferable details. Thanks for reaching us, have a great day.

USER: Oh! that very sad to hear, thank you.

ASSISTANT: Welcome, have a great day.