You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I am Nicole Martin. I am planning to attend Hockey competition in Austin AUS from Houston HOU. Can you make a reservation for me?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: Thank you. My planned trip dates are on Apr 09 and return on Apr 11.

ASSISTANT: Do you need any preferences?

USER: I want to depart in the morning time.

ASSISTANT: Do you have any class preference?

USER: Yes, I need a single connecting flight. No. I don't have any class preferences.

ASSISTANT: Sorry, there are no flights found.

USER: Ok, not an problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your information.