You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Nicholas Perez.

ASSISTANT: How can I aid you at this moment?

USER: I want to travel from HOU to CLT. Can you help me to book a flight ticket?

ASSISTANT: May I know your planned travel dates.

USER: I want to fly in the flight on 04/30 and 05/02.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Thank you for waiting, here I found a flight with 2 connection and airfare is about 200. Shall I proceed in booking?

USER: I am looking for a flight with 1 connection.

ASSISTANT: There are no flights available for your desired connection limit.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Thank you for opting us.