You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Larry Hall.

ASSISTANT: How may I assist you?

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

ASSISTANT: Ok, now please share your travel dates?

USER: I prefer to travel on 04/26 and 04/28.

ASSISTANT: Thanks for your patience. I have found Delta airlines which flies with one connection.

USER: Ok, please confirm my booking.

ASSISTANT: Yes, I have confirmed your flight ticket with flight number 1003.

USER: Thank you.

ASSISTANT: Thank you.