You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I am Karen Thomas here, I want to reserve my ticket from ATL to SFO, can you please help me out?

ASSISTANT: Sure,  may I know your travelling dates?

USER: Sure, my planned dates of travel are from Jul, 11 to Jul, 14.

ASSISTANT: Could you let me know your other requirements?

USER: Yes, I need a connecting flight.

ASSISTANT: We found a flight on Delta airline, flight number 1007 with the fare of 200. Shall I proceed?

USER: Ok, you can book it.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.