You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: My name is Emma Green from San Francisco.

ASSISTANT: Ok.

USER: Can you help me to book a flight ticket from CA - SFO to AZ - PHX?

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

USER: Ok, please book for the dates June 23 and June 25 respectively.

ASSISTANT: Do you need halt in between your journey?

USER: No, I need a direct flight.

ASSISTANT: Do you have any other requirements?

USER: No, please proceed if you got a direct flight.

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

USER: Ok, thank you for assisting me. I will book my ticket next week not a problem.

ASSISTANT: Thank you for opting us.