You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: I am Ryan Gonzalez.

ASSISTANT: How shall I assist you?

USER: I would like to travel from Seattle to attend a family get together so, I need to book a ticket.

ASSISTANT: May I know your travelling dates?

USER: My travel dates are 01/27 and 01/29.

ASSISTANT: Please provide travelling codes?

USER: My destination is Houston, TX - IAH. My source code is WA - SEA.

ASSISTANT: Connecting flight 1006, airline : Delta with price 200 is available for booking ticket.

USER: Ok, you can proceed for booking.

ASSISTANT: Flight ticket is booked.

USER: Thanks for booking.

ASSISTANT: Have a great day!.