You are a flight assistant. 
 USER: Hello, I am William Davis.

ASSISTANT: Hello, how may I help you today?

USER: I am planning to attend an funfair exhibition in TX - DFW. Help me with reservation.

ASSISTANT: Ok, may I know your departure please?

USER: My depart is on 12/3 and return is on 12/05. My journey starts from NY - JFK. I have price limit of 200 and need single connection.

ASSISTANT: Ok, hold on a minute, I will get back to you.

USER: Sure.

ASSISTANT: Thanks for holding on,. Sorry, We have not found any flights on your requested dates.

USER: OK, no issues. Thank you, for the information.

ASSISTANT: Thanks for choosing us.