You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I would like to attend a seminar at Houston, please help me in booking a ticket from LAS to HOU.

ASSISTANT: Sure, may I know your planned travel dates?

USER: My planned travel dates are on Dec 14 and Dec 16.

ASSISTANT: Do you have any specifications?

USER: I prefer a normal-cost airline.

ASSISTANT: Please provide me the name.

USER: My name is Cynthia Collins.

ASSISTANT: May I know the connection limit?

USER: I need a connecting flight.

ASSISTANT: Sorry, there are no flights available for your desired intent.

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

ASSISTANT: Thank you for reaching us.