You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Mary Thompson.

ASSISTANT: How may I assist you?

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

ASSISTANT: Sure, I will help you. May I know your planned trip dates please?

USER: I want to travel on Oct 23, and need to catch return flight on Oct 25.

ASSISTANT: Do you need any halt in between your journey?

USER: No, I need a direct flight.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Mary Thompson, no flights has been found on your requirement.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for approaching us.