You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you.

USER: I need to travel from IAH to HOU, can you help me in doing that?

ASSISTANT: Sure, do you have any airline preference?

USER: I need normal-cost airline.

ASSISTANT: May I know your travel dates?

USER: My journey dates are Oct 01 to 03.

ASSISTANT: Do you need any connections?

USER: I need a connecting flight.

ASSISTANT: Do you have any other preferences?

USER: No, thank you for asking.

ASSISTANT: May I know your name please?

USER: Ryan Roberts here.

ASSISTANT: Ryan Roberts, sorry to say that, there are no flights available at your request.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for reaching us.