You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am crazy about going for tracking at Camel back Mountain at Phoenix, can you please book a flight ticket for me?

ASSISTANT: May I know your travelling dates?

USER: Sure, my plan is to travel on 10/05 to 10/07.

ASSISTANT: Can you please provide your airport codes?

USER: I will depart from LAS and my destination is at PHX.

ASSISTANT: Before further proceeding, may I know your name please?

USER: Sure, my name is Jennifer Roberts.

ASSISTANT: There is no flight with your requirements.

USER: Ok, no problem.

ASSISTANT: Thank you for approaching us.

USER: Thank you for your information.