You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Paul Gonzalez.

ASSISTANT: How can I assist you today?

USER: I am a scientist, I would like to do my research at Houston. Could you please help me in booking a ticket from DCA to IAH?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: My planned journey dates are 06/20 and 06/22.

ASSISTANT: Please give me a moment.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting, there is a flight with price 100 and the connections 1 is available. Shall I confirm your ticket?

USER: Ok, please confirm with my booking.

ASSISTANT: Your ticket is booked. The flight number is 1000 and the airline is Delta.

USER: Thank you for your help.

ASSISTANT: Welcome, have a great day.