You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I want to book a ticket from JFK to HOU to attend seminar, can you help me in booking?

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

USER: My departure date is on July 07 and return on July 09.

ASSISTANT: Do you have any limits on number of connections?

USER: I need a flight with connection limit 0.

ASSISTANT: Do you have any another preferences on this journey?

USER: I am ok with business class flight.

ASSISTANT: Do you have any airline preference?

USER: I do not have any preference.

ASSISTANT: May I know your name for the documentation purpose?

USER: My name is Elizabeth Martinez.

ASSISTANT:  Unfortunately, no flights available on your requirements.

USER: That's ok, thank you for your information.

ASSISTANT: Welcome, thank you for reaching us.