You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Jennifer Williams.

ASSISTANT: How may I help you?

USER: I have to attend a urgent seminar at Washington. Can you please help me in booking the ticket from IAH to IAD?

ASSISTANT: Sure, can you please share your travel dates?

USER: I will drop-off 04/18 and again I will be return back on 04/20.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Thank you for your waiting, I found a flight for you in Delta airlines with fare 100. Can I proceed?

USER: Go ahead and book the ticket.

ASSISTANT: Ok, your ticket has been booked with flight number 1003.

USER: Thank you very much for reserving the ticket.

ASSISTANT: Thank you for reaching us.