You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: I am Andrew Anderson, can you book a flight ticket from AZ - PHX to NY - EWR?

ASSISTANT: Sure, I will help you with that. Can you please share your journey dates?

USER: Ok, my travel dates 01/25 and 01/27 respectively.

ASSISTANT: Wait for a minute. I am sorry to say that there is no flight found.

USER: I will wait. That's ok, I will book next week. Thank you for assisting me.

ASSISTANT: Thank you for contacting us.