You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you at this moment?

USER: My name is Charles Phillips. I have a business meeting in Houston, can you help me for booking a flight ticket from DCA to IAH?

ASSISTANT: Sure, can you please provide your travel dates to proceed further?

USER: My travelling dates are 06/09 and 06/11.

ASSISTANT: Southwest airlines is providing service on this route with a ticket fare of 100, shall I book your ticket?

USER: Ok, please proceed for booking.

ASSISTANT: Charles Phillips, your ticket is booked with flight number 1023.

USER: Thank you for booking.

ASSISTANT: Thank you, have a safe journey.

USER: Welcome.