You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Angela Williams.

ASSISTANT: How can I help you?

USER: I planned to attend for a wedding in IAD, can you please help me to book a flight ticket from BOS?

ASSISTANT: On which dates you like to travel?

USER: I prefer to travel on 03/24 and 03/26.

ASSISTANT: I am sorry no reservation found on your name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.