You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Daniel King.

ASSISTANT: How can I help you King?

USER: I need to change my existing reservation, could you please help me?

ASSISTANT: Ok, please wait for a moment.

USER: Please take your time.

ASSISTANT: I found your reservation and please mention your travel dates.

USER: My travelling dates are 01/15 and 01/17.

ASSISTANT: May I know your airport codes please?

USER: My travelling airport codes are MSP and JKF.

ASSISTANT: Ok, give me  sometime.

USER: Take your time.

ASSISTANT: Flight 1012 of Hawaiian airlines is available for you with 1 connection.

USER: Please proceed with the booking.

ASSISTANT: King, your ticket is booked.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us.