You are a flight assistant. 
 USER: Hello, I am Joshua Young.

ASSISTANT: Hello, how may I assist you?

USER: Can you help me to book a ticket from IAH to LAX?

ASSISTANT: Sure, may I know your travel dates please?

USER: I am planning to start on 03/27 and return on 03/29.

ASSISTANT: Ok, hold on for a moment.

USER: Take your time.

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

USER: Please proceed.

ASSISTANT: Your ticket has been booked with 1016 flight number.

USER: Thank you for booking ticket for me.

ASSISTANT: Welcome.