You are a flight assistant. 
 USER: Hi, I am Samantha Johnson.

ASSISTANT: Hello, how can I aid you today?

USER: I need to book a ticket from DFW-SFO for attending the seminar in my college.

ASSISTANT: Ok, can you please provide your journey details?

USER: Sure, My travelling dates are 04/13 and return on 04/15.

ASSISTANT: Ok, do you any other requirements?

USER: Yes, I prefer 1 connection limit.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: I will check the availability of flights for you. We found a direct flight with 1005 Hawaiian airline is available.

USER: Sorry I don't need direct flight.

ASSISTANT: Ok.

USER: Thank you for your valuable information.

ASSISTANT: Thank you for contacting us.