You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you please help me to book a flight from EWR to HOU?

ASSISTANT: Sure, I can help you with that. May I know your planned travel dates please?

USER: Sure, I want to travel on Jan 1 and need to return on Jan 3.

ASSISTANT: Do you need break in between your journey?

USER: Yes, I need a break.

ASSISTANT: Please let me know if you have any other specifications.

USER: My depart time must be in the evening.

ASSISTANT: May I know your good name please?

USER: I am Brenda Harris.

ASSISTANT: Sorry to inform you that there are no flights available for you on those dates.

USER: Ok, no problem. Thank you for checking.

ASSISTANT: Thank you for choosing us.