You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Timothy Thomas. I have to meet my friend who is participating in the basketball tournament in Washington.

ASSISTANT: Ok,.

USER: Can you help me in booking a flight ticket?

ASSISTANT: Sure, may I know your travel dates?

USER: My departure date is 01/01 and arrival date is 01/03.

ASSISTANT: Can you please share me your airport codes?

USER: My airport codes are from Oakland CA-OAK to Washington DC-IAD.

ASSISTANT: Do you have any specification?

USER: As I have enough money, I can bare upto 5000. I need a lay by.

ASSISTANT: We found a flight on your details with airline Delta, flight number: 1005. Shall I book this ticket?

USER: Please continue with booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you so much for opting us.