You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be at your service today?

USER: I need to go Detroit, as my sister is blessed with a baby boy. Can you please book a ticket from SFO to DTW?

ASSISTANT: Sure, may I know your name please?

USER: Sure, my name is Samantha Perez.

ASSISTANT: Kindly assign your depart and arrival dates of the journey?

USER: I would like depart from my location on 5th Sept and I want to return back by 7th Sept.

ASSISTANT: Is there any class preference in your journey?

USER: No, I'm ok with any class.

ASSISTANT: Do you have any other preferences?

USER: Yes, my maximum connection has to be 1.

ASSISTANT: Ok, please be on hold.

USER: Sure, I'll wait.

ASSISTANT: Sorry to inform you that, we did not find any flights matching your journey dates.

USER: Oh! That's ok, thank you for giving the information anyways.

ASSISTANT: Thank you for approaching us.