You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to change my existing reservation, can you please help me with this?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: My name is Raymond Anderson.

ASSISTANT: I found your reservation on your given name, let me know your travel dates please?

USER: My travel dates are June 5 to June 7.

ASSISTANT: Could you please share me your new airport codes?

USER: My airport codes are OAK to IAH?

ASSISTANT: May I know your connection limit?

USER: I need a single connection of flight.

ASSISTANT: Do you need any other preference?

USER: No.

ASSISTANT: JetBlue Airlines is providing connecting flight with the ticket fare of 100 and depart time is 12:00 hours, arrival time is 3:00 hours. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been confirmed by flight number 1013 and an economy class.

USER: Thank you.

ASSISTANT: Thank you for choosing us.