You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am David Jackson.

ASSISTANT: David, how can I help you today?

USER: Can you please help me in changing my recent reservation?

ASSISTANT: Sure, I will help you with that. Please wait for a moment.

USER: Ok, thank you for accepting my request. I can wait for your reply.

ASSISTANT: David, I found your reservation. Please share your trip dates.

USER: My trip dates are 06/29 and 06/01. Please replace my 06/01 date to 07/01 date.

ASSISTANT: Can I know your airport codes?

USER: My travelling airport codes are DTW to MCO.

ASSISTANT: Please tell me your exact travel dates.

USER: Please search a direct flight for me to book and 06/29 and 07/01 are my travelling dates.

ASSISTANT: There is a direct flight for you with UA airlines, can I book?

USER: Ok, please proceed.

ASSISTANT: Davis, your ticket is booked in 1024 flight.

USER: Thank you.

ASSISTANT: Thank you for choosing us.