You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I am Brian Clark here, I want to reserve my ticket from DFW to PHL, can you please help me?

ASSISTANT: Sure, I am here to help you. Could you please share your travelling dates?

USER: Sure, my planned dates of journey is from 08/29 to 08/31.

ASSISTANT: o you have any requirements?

USER: Please make sure that the connections limit is 1.

ASSISTANT: Sorry, there is no flight.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your service.