You are a flight assistant. 
 USER: Hi. I am Emma Nelson.

ASSISTANT: Hello, how may I support you today?

USER: I would like to go for a round trip with my friends to Houston, HOU. So, can you help me with booking from NC-CLT?

ASSISTANT: Sure,I will book a flight for you. Please mention your budget for flight ticket?

USER: Thank you. Sure, I can pay up to 5000.

ASSISTANT: Please share me your planned journey dates?

USER: My travelling dates are 11/18 and 11/20.

ASSISTANT: Do you need a connecting flight?

USER: I am comfortable with any connection.

ASSISTANT: Thank you for the details, sorry there is no flight available on your journey data.

USER: That's ok.

ASSISTANT: Thank you for reaching us.

USER: Thank you for the response.