You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I would like to visit Houston Arboretum and Nature Center at Houston, HOU. Can you help me to book a ticket from DEN?

ASSISTANT: Sure, could you please share your travelling dates?

USER: Journey dates are 02/19 and 02/21.

ASSISTANT: May I know your budget for airfare?

USER: Price should not cross 5000.

ASSISTANT: Do you need any halt in between journey?

USER: I need break in my journey.

ASSISTANT: Ok, can I have you name to proceed?

USER: Michelle Turner here.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thank you for your time, sorry, no reservation found with your name.

USER: No problem, Thank you.

ASSISTANT: Thank you for connecting with us.