You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Virginia Walker here.

ASSISTANT: How can I assist you?

USER: I would like to visit San Francisco to meet my grand father, can you please help me in booking a flight ticket?

ASSISTANT: Sure, I will help you to book a flight. Can you please provide me your travelling dates?

USER: I will start my journey on 02/03 and my return will be on 02/05.

ASSISTANT: Ok, may I know your airport codes?

USER: My airport codes are from BOS to SFO.

ASSISTANT: Ok, give me a moment.

USER: Ok, take your time.

ASSISTANT: Yes, I found a flight for you with single connection.

USER: Yes, you can proceed.

ASSISTANT: Your ticket is confirmed with flight number 1009.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.