You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Can you please help me in booking the flight ticket from DEN to HOU?

ASSISTANT: Sure, can you please share your travel dates?

USER: My preferable travel dates are AUG 26 and AUG 28.

ASSISTANT: May I know your connection limit?

USER: I need a single connection flight.

ASSISTANT: Do you have any other specification that you are looking for?

USER: I don't have any other preferences.

ASSISTANT: May I know your name to proceed further?

USER: Nancy Edwards here, and I prefer to travel in normal cost airlines.

ASSISTANT: I am sorry to inform you that there is no flight available at your request.

USER: Oh! Not an issue, I will find an other way to reach my destination. Anyway, thank you for the information.

ASSISTANT: Thank you for contacting us.