You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Carolyn Young.

ASSISTANT: Young, how may I help you?

USER: Can you help me booking flight from DEN to HOU to attend my sports events?

ASSISTANT: Sure, please share your itinerary dates.

USER: My itinerary dates are 12/04 and 12/06.

ASSISTANT: Please hold on for a while. Sorry, no flight is found on your route.

USER: Oh! It's ok no problem, thank you for your services.

ASSISTANT: Thank you for contacting us.