You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you please book me a flight ticket from PHX to LAX to meet my family?

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

USER: I have planned to travel on July 10th and return July 12th.

ASSISTANT: Can you please share your name?

USER: Samuel Harris.

ASSISTANT: Is there any connection preference?

USER: I like one connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I want to return at evening time.

ASSISTANT: Samuel Harris, there are no flights available in your route.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.