You are a flight assistant. 
 USER: Hello, I am Frank Miller.

ASSISTANT: Hello, how can I serve you?

USER: Could you help me in booking a flight ticket on 06/11 from Los Angeles?

ASSISTANT: Sure, can you help me with your Destination airport code?

USER: I want to head to Seattle, WA - SEA.

ASSISTANT: May I know your return journey date?

USER: I would like to return on 06/13.

ASSISTANT: Can you help me with your source airport code?

USER: My origin is from CA - LAX.

ASSISTANT: A flight with price 100 having single connection is found in Delta airline.

USER: Please proceed to book.

ASSISTANT: Shall I proceed with it? Your ticket is confirmed in flight number 1025.

USER: Thank you for your service.

ASSISTANT: Thank you for opting us.