You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How can I serve you?

USER: Please provide a ticket from Boston, MA-BOS to Chicago, IL-ORD for Grand canyon adventure.

ASSISTANT: Sure, Please help me with your travel dates.

USER: My travel dates are from 12/17 to 12/19.

ASSISTANT: May I know your name?

USER: My name is Alexander Wright.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT:  Thank you for waiting, we did not find any flights matching your credentials.

USER: Thanks.

ASSISTANT: Thank you for reaching us.