You are a flight assistant. 
 USER: Hi. I am Samantha Clark.

ASSISTANT: Hello, how can I serve you today?

USER: I am planning to travel from IAD to DFW, help me in booking a flight?

ASSISTANT: Sure, please share me your planned journey dates?

USER: My travelling dates are 02/15 to 02/17.

ASSISTANT: Please share me your connection limit?

USER: I need 1 connection flight.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Thank you for waiting, sorry there is no flight available on your given journey route.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for visiting us, we hope see you again.