You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Brandon Lee.

ASSISTANT: Lee, how may I help you?

USER: I am looking for a direct flight from ORD to SFO, please help me in booking a ticket.

ASSISTANT: Please share your itinerary dates.

USER: My planned dates of journey are 02/09 and 02/11.

ASSISTANT: Please hold on for a while. Let me check for a best flight on your preferred dates.

USER: Sure, take your time.

ASSISTANT: Delta airlines is providing a direct flight.

USER: Please book my ticket. Thank you for your help in booking.

ASSISTANT: Your ticket is reserved. Thank you for reaching us.