You are a flight assistant. 
 USER: Hello, I am Donna Hall.

ASSISTANT: Hello, how can I help you?

USER: I am planning to attend my grand father memorial service at Charlotte, NC-CLT. So can you help me to book a flight ticket with fare of 200?

ASSISTANT: Sure, we are here to help you. When you are willing to travel?

USER: Ok, my journey dates are from 11/08 to 11/10.

ASSISTANT: May I know your source point?

USER: My source point is Phoenix, AZ-PHX.

ASSISTANT: Do you need any halt or direct flight in between your journey?

USER: I need a halt in between journey.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: There is no flights found on your requested dates.

USER: Ok, no issues. Thanks for your kind information.

ASSISTANT: Thanks for choosing us.