You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you aid me to book my ticket from EWR to HOU?

ASSISTANT: Please provide your trip dates.

USER: My trip dates are June 15 and June 17 respectively.

ASSISTANT: Do you need any connection limit?

USER: I prefer for connecting flight.

ASSISTANT: Do you have any other specifications?

USER: My depart time should be in the evening.

ASSISTANT: May I know your name?

USER: Betty Turner here.

ASSISTANT: There are no flights available on your routes.

USER: Thank you.

ASSISTANT: Thank you for choosing us.