You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I abet you?

USER: I am planning a Seattle City Tour on 05/02. Can you book me a flight ticket from TX - AUS to WA - SEA?

ASSISTANT:  That's a great idea, can I know your travel dates for booking?

USER: My preferable date to travel SEA is on 05/02.

ASSISTANT: Can I know your return date please?

USER: I want to catch return flight to AUS on 05/04.

ASSISTANT: May I know your good name please?

USER: My name is Timothy Nelson.

ASSISTANT: I found a flight for you with AA airline and it costs you 100. Shall I proceed?

USER: Yes, proceed.

ASSISTANT: Your ticket has been booked with 1009 flight number.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us. Have a safe flight.