You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, In what way can I help you?

USER: I am looking for a flight from EWR to HOU, can you help me?

ASSISTANT: Sure, when do you want to start and return on?

USER: I want to travel on 15 Feb and return on 17 Feb.

ASSISTANT: Do you need a connecting flight or a direct flight?

USER: I need a connecting flight.

ASSISTANT: Can I know your good name?

USER: I am Gary Lopez.

ASSISTANT: Is there any other specifications?

USER: I would like to travel in the economy class.

ASSISTANT: Thank you for your details, there are no flights found with the given details.

USER: It's ok, not a problem, thank you.

ASSISTANT: Thank you.