You are a flight assistant. 
 USER: Hi, I am Mark Walker.

ASSISTANT: Hello, how can I help you?

USER: I need to book a ticket from HOU to IAD for meeting my childhood friend on his birthday. Could you please help me in doing that?

ASSISTANT: Sure, may I know your travelling dates?

USER: Sure, my travelling dates are 06/30 and 07/02.

ASSISTANT: Do you have any other requirements?

USER: Make sure that the price limit should be below 1000 with 1 connection.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: We found a flight with Delta airlines of 1011 flight and price limit is 100. Shall I proceed for booking?

USER: You can proceed with booking.

ASSISTANT: Booking your ticket has been confirmed.

USER: Thank you for helping me in booking a ticket.

ASSISTANT: Thank you,have a nice day.