You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is John Williams.

ASSISTANT: How may I help you?

USER: I would like to travel from IAH to LAX, could you help me out?

ASSISTANT: Sure, please share your travel date.

USER: My preferable dates are from 06/04 to 06/06.

ASSISTANT: I found a flight 1021 of Delta airlines matches with your preferences, can I proceed?

USER: Please proceed with the booking.

ASSISTANT: Your ticket is confirmed. Happy journey.

USER: Thank you.

ASSISTANT: Thank you for reaching us.