You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Katherine Thomas.

ASSISTANT: What can I do for you now?

USER: I need to attend a seminar at Dallas & Fort Worth, so can you book me a direct flight from San Francisco?

ASSISTANT: Ok. In what date you have to start your journey?

USER: I want to start on 04/05 and return on 04/07.

ASSISTANT: Let me know your boarding point.

USER: Sure, my airport codes are CA-SFO and TX-DFW.

ASSISTANT: Thanks for your details. I am glad to inform you that there is a flight with 1 connection of price 100 in Delta airline. Having 1015 flight.

USER: Please proceed with booking.

ASSISTANT: Sure, ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for picking us.