You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you the best today?

USER: Could you please help me in  booking a ticket from OAK to BOS where I have a meeting to attend.

ASSISTANT: Sure, we are pleased to serve you. Can you share me your travel dates?

USER: My itinerary travel dates are as follows Dec 10 and Dec 12.

ASSISTANT: Do you need any break in your journey?

USER: I would like to travel by single connection flight.

ASSISTANT: May I know your depart and arrival time?

USER: I have no other preferences.

ASSISTANT: May I know your good name please?

USER: My name is Shirley Parker.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Sorry to inform you that, there are no flights available on your requirements.

USER: No issue, thank you for the information.

ASSISTANT: Thank you for reaching us.