You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I want to reserve my ticket from BOS to MSP, can you please help me in reserving my ticket?

ASSISTANT: Your travelling dates please?

USER: Sure, my planned dates of journey are from Jun, 11 to Jun, 13.

ASSISTANT: Do you have any connection limit?

USER: Yes, I want to fly in a connecting flight.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: May I know your good name?

USER: Sure, my name is Donald Wilson.

ASSISTANT: Sorry, no flights are available on your journey routes.

USER: Ok, no problem. Anyways, thank you for your appreciable service.

ASSISTANT: Thank you for choosing us.