You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I am planning to travel from JFK to IAH, help me in booking a flight?

ASSISTANT: Sure, let me know your travel dates please?

USER: My travelling dates are Oct 18 to 20.

ASSISTANT: Ok, is there any class preference?

USER: I need 1 connection flight in business class and I need normal-cost airlines.

ASSISTANT: Can I know your name please to proceed further?

USER: I am Charles Moore.

ASSISTANT: Sorry to inform you that there are no flight services available on your given dates.

USER: That's ok, thank you.

ASSISTANT: Thanks for contacting us.