You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I guide you?

USER: I am Michelle Martin. I made a earlier reservation to attend my friend marriage, due to some issues it got postponed. Can you please change my reservation?

ASSISTANT: Ok, sure. Please wait for a while.

USER: Sure.

ASSISTANT: Your reservation got found. May I know your travelling dates?

USER: My journey dates are on Jan 1st and 3rd.

ASSISTANT: Can you please mention your new travelling airport codes?

USER: My airport codes are, PHX to MSP.

ASSISTANT: Please tell me your depart and arrival timings?

USER: I would like to depart in the morning. I need a direct flight.

ASSISTANT: Ok, do you have any other specifications?

USER: No.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for your details, there are no flights found in the morning time.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.