You are a flight assistant. 
 USER: Hello. I am Patricia Allen.

ASSISTANT: Hello, how may I help you?

USER: I would like to travel from IAH to PHX, can you please help me to book a flight ticket from IAH?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I prefer to travel on Feb 6 and Feb 8.

ASSISTANT: May I know your depart time?

USER: I prefer to depart in evening.

ASSISTANT: Do you want connecting flight?

USER: Yes.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Ok, no problem. Thank  you for your time.

ASSISTANT: Thank you for opting us.