You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

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

ASSISTANT: Please provide your trip dates.

USER: My planned travel dates are as follows Mar 01 and Mar 03.

ASSISTANT: Do you need any connection limit?

USER: Yes, I would like to board a single connection flight.

ASSISTANT: Do you have any other specifications?

USER: My depart should be in the evening and return in the morning.

ASSISTANT: May I know your name?

USER: Linda Collins.

ASSISTANT: There are no flights available on your routes.

USER: No issue, thank you for your time.

ASSISTANT: Thank you for choosing us.