You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,how can I assist you?

USER: I need a flight ticket to Houston to attend world health organization meeting. Can you please book me a flight ticket with in fare of 200?

ASSISTANT: Sure, may I know your journey details?

USER: My journey starts at Dallas and Fort Worth, TX - DFW to Houston, TX - IAH. My preferable dates are departure on 09/28 and return on 09/30 with one connection.

ASSISTANT: To proceed further may I know your name?

USER: Anna Phillips is my name.

ASSISTANT: We found a flight with UA airlines of 1001 airlines and price is 100. Shall I proceed for booking?

USER: Ok, you can proceed for booking.

ASSISTANT: Booking your ticket has been confirmed.

USER: Thanks for booking my ticket.

ASSISTANT: Thank you, have a nice day.