You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I want to reserve my ticket from MCO to DFW, can you please help me in booking?

ASSISTANT: Ok, may I know your travelling dates?

USER: Sure, my planned dates of journey are from Jul, 28 to Jul, 30.

ASSISTANT: Do you have any connection limit?

USER: Yes, I want a connecting flight.

ASSISTANT: Is there any other preferences?

USER: Yes, I want a depart time which should be at afternoon.

ASSISTANT: May I know your name in the meanwhile?

USER: Sure, my name is Donna Campbell.

ASSISTANT: Sorry to say, there is no flight for you on your route.

USER: Ok, not an issue. Anyways, thank you for your service.

ASSISTANT: Thanks for reaching us, have a good day.