You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I support you?

USER: I am Timothy Thompson.

ASSISTANT: Ok.

USER: I intend to visit Denver, CO - DEN on 04/07 so, please book a ticket under a fare of 5000.

ASSISTANT: Sure, please provide your return date.

USER: My return date is 04/09.

ASSISTANT: Ok, Could you please mention your source?

USER: Minneapolis, MSP  is my source point.

ASSISTANT: Ok, please wait for a moment.

USER: OK.

ASSISTANT: Thank you for waiting, No flights were found with your given data.

USER: Ok, no problem.

ASSISTANT: Thank you for availing us.

USER: Thanks for the information.

ASSISTANT: Have a nice day.