You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you please help me in booking a flight ticket from SFO to PHX?

ASSISTANT: Sure, may I know your travel dates?

USER: Sure, my travel dates are from Feb 13 to Feb 15.

ASSISTANT: Do you have any specifications?

USER: I would prefer economy class for my trip.

ASSISTANT: Ok, please wait a minute.

USER: Please make sure that, I would like to travel in a connecting flight which departs in the evening.

ASSISTANT: May I know your name?

USER: Myself Angela Adams.

ASSISTANT: Sorry, there were no flights found on your specified time.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you.