You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Elizabeth Gonzalez.

ASSISTANT: Ok.

USER: I want to travel from HOU to ORD.Can you please help me to book the ticket?

ASSISTANT: May I know your travelling dates?

USER: I prefer to travel on 12/04 and 12/06. Please make sure that the connection is 1.

ASSISTANT: Sorry no flights found. Thank you for contacting us.

USER: That's ok. Thank you for your time.