You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you at this moment?

USER: I want to book a flight ticket from PHX to IAD. Can you help me in that?

ASSISTANT: Sure, I am here to help you. Can you please provide your journey dates?

USER: I will fly on May 16 and return on May 18.

ASSISTANT: Do you need any halt in this journey?

USER: I need a connecting flight.

ASSISTANT: May I know your good name to proceed further?

USER: Myself Stephanie Turner.

ASSISTANT: Stephanie Turner, there are no flight services available on this route on your provided dates.

USER: Ok, no problem. I will choose alternate way to reach my destination. Thank you.

ASSISTANT: Thank you for choosing us.