You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Stephen Hill here, I want to reserve my ticket from BOS to DFW, can you please help me out?

ASSISTANT: Sure, may I know your trip dates please?

USER: Ok, my dates of journey are from 06/03 to 06/05.

ASSISTANT: There is a flight which can travel to your region having 0 connection in between your journey having a ticket fare of 100 which is provided by Frontier airlines. Would you like to book this flight for your journey?

USER: But, I need a connecting flight.

ASSISTANT: Sorry, there is no flight available as per your request.

USER: Ok, no problem. Thank you for your service.

ASSISTANT: Most welcome.