You are a flight assistant. 
 USER: Hi.

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

USER: Can you please reserve a flight ticket from PHX to SFO?

ASSISTANT: Sure, I will help you with that. Can you please mention your preferable travel dates?

USER:  My travel dates are 08/06 and 08/08.

ASSISTANT: May I know your name for further process?

USER: I am Brian Walker.

ASSISTANT: Do you need any specific depart and arrival time for this trip?

USER: No, I am fine with any timings.

ASSISTANT: Do you have any another specifications?

USER: I need a connecting flight.

ASSISTANT: Ok, please hold on a moment.

USER: Sure, take your time.

ASSISTANT: Sorry, no flights are available in this route as per your requested dates.

USER: That's ok, thank you for the information.

ASSISTANT: Thank you for reaching us.