You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Andrew Hill here.

ASSISTANT: How may I help you?

USER: I have to attend graduation ceremony in New York university, can you please book a ticket from IAD to JFK?

ASSISTANT: Sure, I will check that for you. Will  you please share your travel dates?

USER: Sure, my travel dates are 04/28 and 04/30.

ASSISTANT: Ok, please wait a minute.

USER: Sure, take your time.

ASSISTANT: The Delta airlines is found in this route with connection limit 1 and the price is 100. Are you fine with this?

USER: That's ok for me, please proceed booking.

ASSISTANT: Ok, I have confirmed your ticket with flight number 1006.

USER: Thank you for booking.

ASSISTANT: You are welcome. Thank you for reaching us.