You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Sarah Jones.

ASSISTANT: Jones, how can I assist you?

USER: I want to meet my brother as he is unwell, can you please help me to book the flight ticket from PHX to DEN?

ASSISTANT: Sure, please provide your travel dates.

USER: I want to depart on 08/03 and return back on 08/05.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, no flight is available on your route.

USER: No problem, I will find an other way. Thank you for the information.

ASSISTANT: Thank you for contacting us.