You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I render you today?

USER: I would like to attend a meeting in Phoenix, can you please make a reservation from BOS to PHX?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: My journey dates are, start on Oct 29th and return back on Oct 31st.

ASSISTANT: Ok, do you have any specifications?

USER: I need  a connecting flight.

ASSISTANT: Ok, hold on for a moment. Let me check the best available flight for you.

USER: I want to travel in normal-cost airlines. Sure.

ASSISTANT: May I know your name please?

USER: This is Brian Martinez.

ASSISTANT: Sorry Brain Martinez, there are no flights available on your requested dates.

USER: Ok. no problem. Thank you.

ASSISTANT: Welcome, thank you for choosing us. Have a great day.