You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I want to book a ticket from DFW to SFO, can you help me with that?

ASSISTANT: Sure, I can do that for you. Can you please let me know your travel dates?

USER: My trip dates are 03/05 and 03/07.

ASSISTANT: Ok, please let me know your specifications.

USER: I need a connecting flight in economy class.

ASSISTANT: Ok, please help me with your name.

USER: I am David Young, and I need to depart on afternoon.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Direct flight is available in Hawaiian airlines with ticket fare of 200, it's departure time is 12 PM and return time is 18 PM. Shall I proceed for booking?

USER: That's ok. Proceed.

ASSISTANT: I have successfully booked you an economy class ticket in flight-1019, have a safe journey.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.