You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I would like to book a ticket from CLT to MSP, can you please help me out?

ASSISTANT: Let me know your travelling dates.

USER: I am travelling on these dates April 17th and 19th.

ASSISTANT: Is there any connection limit?

USER: I need direct flight.

ASSISTANT: Do you have any preference?

USER: I don't have any other preferences.

ASSISTANT: Can I know your name?

USER: Angela Thomas here.

ASSISTANT: Sorry, no flights found for your travelling dates.

USER: Ok no problem, thank you for your services.

ASSISTANT: Thank you.