You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I'm planning to visit my grand parents, can you book a ticket from IAD to LAS?

ASSISTANT: Sure, may I know your trip dates please?

USER: Sure, my planned departure and return travel dates are 11th and 13th of May.

ASSISTANT: Do you have any other requirements?

USER: I'm looking for single connected flight.

ASSISTANT: Ok, let me know your name please.

USER: My name is Donna White.

ASSISTANT: Ok, please wait for a while.

USER: Sure, I'll wait for your response.

ASSISTANT: Thank you for waiting and we have found a flight in economy class with 1 connection in Hawaiian airlines and the fare of your flight will be 300. Do you like me to proceed your booking with this flight?

USER: Yes, you can proceed for booking.

ASSISTANT: Ok, your ticket is booked with the flight number 1003.

USER: Thank you so much for your help.

ASSISTANT: My pleasure.