You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you at this moment?

USER: I am planning to go for a holiday trip on Jan 16th and 18th, can you please make a reservation for me?

ASSISTANT: Sure, do you need a stopover in between your journey?

USER: Yes, I need a stopover in between journey.

ASSISTANT: Could you please share your journey locations?

USER: My airport codes are, OAK to PHX.

ASSISTANT: Do you have any other preferences?

USER: I prefer economy class in my journey.

ASSISTANT: May I know your good name?

USER: This is Linda Gonzalez.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Sorry, there are no flights found from your source on given dates.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.