You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you now?

USER: I want to change my existing reservation, as my exams got postponed. Can you please help me out with it?

ASSISTANT: Sure, I am here to help you. May I know your name to check your reservation status?

USER: Thank you for the response, my name is Kenneth White.

ASSISTANT: Ok, please wait for a while.

USER: Ok, sure. I will wait for your response.

ASSISTANT: We have found an active reservation on your name. Please, share me your nearest airport codes.

USER: That's great to hear from you. My nearest airport codes are HOU and SEA.

ASSISTANT: Let me know your travelling dates for the journey.

USER: My travelling dates are June 8th and June 10th.

ASSISTANT: Do you have any connection limit?

USER: I prefer a single connecting flight.

ASSISTANT: Which class do you prefer to travel?

USER: I would like to travel in economy class.

ASSISTANT: Do you have any other specifications?

USER: I want to return in the morning time.

ASSISTANT: Ok, please wait for a while.

USER: Ok, sure.

ASSISTANT: Delta airlines is providing you the connecting flight in economy class, shall I proceed by booking?

USER: Please, proceed by booking.

ASSISTANT: Your ticket has been reserved with flight 1029.

USER: Thank you for the service.

ASSISTANT: Thanks for reaching us.