You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Michael Perez.

ASSISTANT: Michael, how can I aid you now?

USER: I want to see space needle in Seattle, so could you please book a ticket from PHX to SEA?

ASSISTANT: That's good, I will help you with that.

USER: Thank you.

ASSISTANT: May I know the travelling dates?

USER: I would like to fly on 04/22 and return on 04/24.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry Michael, there are no flights found on your requirement.

USER: That's ok, no problem.

ASSISTANT: Do you have any other travelling dates?

USER: No I want to travel on those particular days only. Thank you for helping.

ASSISTANT: Thank you for reaching us, have a nice day.