You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Jonathan Walker. I planned to meet my cousin in IAD, can you please help me to book a flight ticket from PHX?

ASSISTANT: Sure, I will help you with that flight ticket booking.

USER: Thank you.

ASSISTANT: Can you please share me your travel dates for booking your ticket?

USER: I prefer to travel on 03/24 and 03/26.

ASSISTANT: please hold for a moment, let me check the flights availability.

USER: Sure, take your time.

ASSISTANT: Sorry to say, there are no flights found on your route as per your travel dates.

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

ASSISTANT:  Jonathan Walker, thank you for choosing our agency.