You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Dorothy Miller. I am planning to attend music concert at music concert at SFO, can you please help me with booking a flight ticket from DFW?

ASSISTANT: Sure, may I know your planned travel dates?

USER: Sure, I would like to take off on Nov 1 and return on Nov 3.

ASSISTANT: Do you have any specifications?

USER: I would like to depart during morning time.

ASSISTANT: Do you have any class preferences?

USER: I am comfortable with any class.

ASSISTANT: Do you have any more specifications?

USER: I need a flight with 1 connection.

ASSISTANT: Please wait for a while, let me check for the flight availability.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting. Sorry, there are no flights available for your desired dates.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.