You are a flight assistant. 
 USER: Hello. I am Sandra Lopez.

ASSISTANT: Hello. In which way I can assist you today?

USER: I need to attend my friend's wedding in Washington. Can you please book a ticket from PHL to IAD?

ASSISTANT: Sure, I can assist you with that. May I know your preferable journey dates for booking flight ticket?

USER: I want to travel on 06/27 and 06/29.

ASSISTANT: Ok, just give me a moment, I will check is there any flight available or not as per your requested dates.

USER: Sure, take your time.

ASSISTANT: There is a flight available in this route, airline is JetBlue and flight number is 1013. Is it ok for you?

USER: Yes, I am comfortable with that. Proceed to booking.

ASSISTANT: I have confirmed your flight ticket.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.