You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: I am Kathleen Roberts. I would like to book a ticket to Denver, CO - DEN to attend my grandmother memorial services.

ASSISTANT: Ok, Can you provide me trip dates please?

USER: Sure, I wish to travel on 03/31 and 04/02.

ASSISTANT: May I know your source point?

USER: Orlando, FL - MCO is my source point.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: Thanks for waiting unfortunately there is no flights found on your details.

USER: Ok, not a problem.

ASSISTANT: Thanks for choosing us.

USER: Thanks for the information.