You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I serve you?

USER: I need to do some changes in my previous flight booking that I have booked a ticket with wrong airport codes, can you please help me with that?

ASSISTANT: Sure, I am happy to help you.

USER: Thank you.

ASSISTANT: Would you please help me with your good name?

USER: I am Pamela Green.

ASSISTANT: We found a reservation on your name. Can you please let me know your trip dates?

USER: Sure, my desired travel dates are Apr 7 and I will arrive back on Apr 9.

ASSISTANT: Kindly mention your respective airport codes.

USER: My preferable airport codes are LGA and HOU regions.

ASSISTANT: Do you have any stopover in between journey?

USER: Yes, please check the flight with a single stopover for this journey.

ASSISTANT: Is there any class preference for you?

USER: I don't have any plan with my class, I am ok with any flight.

ASSISTANT: May I know your airline preference?

USER: No.

ASSISTANT: If you have specific depart and arrival timings please let me know?

USER: No specific timings for my journey.

ASSISTANT: Thanks for providing details, there is a connecting flight found in Hawaiian airline with a fare of 200 which departs at 4:00 and return at 20:00. Shall I proceed for booking?

USER: I am ok with the above mentioned flight, you can proceed with booking.

ASSISTANT: Ok, your ticket has been changed successfully and new booking is done in an economy class with the flight number is 1015.

USER:  Thank you for your enormous help with my flight ticket changing process.

ASSISTANT: Thank you for opting us.

USER: Welcome.