You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I render you today?

USER: I need to book a flight ticket from CLT to JFK, can you help me in booking a flight ticket?

ASSISTANT: Sure, may I know your good name?

USER: Sure, Anna Walker here.

ASSISTANT: Could you please share your travel dates?

USER: Sure, my journey dates are Apr 29 and May 1.

ASSISTANT: Do you have any preferences?

USER: I prefer maximum one connection.

ASSISTANT: Sorry, there are no flights available as per your requirements.

USER: Ok,no issues. Thank you for your assistance.

ASSISTANT: Thank you for opting us.