You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you at this moment?

USER: Can you please help em to book a ticket from PHX to ORD?

ASSISTANT: Sure, may I know your class preference?

USER: I am okay with any class.

ASSISTANT: Ok, do you need any lay by in between the journey?

USER: I need one stopover in between journey.

ASSISTANT: On which dates would you like me to travel.

USER: I want to depart on June 02 and return on June 04.

ASSISTANT: Do you have any other preferences?

USER: I  want to return in the morning time.

ASSISTANT: There are no flights found on your requested dates.

USER: Ok, thank you for informing me.

ASSISTANT: May I know your good name please?

USER: My name is Christine Edwards.

ASSISTANT: Thank you for reaching us.

USER: Welcome.