You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Daniel White here.

ASSISTANT: How may I help you today?

USER: I want to change my recent reservation because heavy snow fall.

ASSISTANT: Sure, I am here to help you with that. Please wait for a minute.

USER: Sure.

ASSISTANT: I have found your reservation. Can you send me your travelling dates?

USER: My travelling dates are 05/11 to 05/13.

ASSISTANT: Sure, may I know your airfield locations?

USER: My source and destination airport codes are DTW and MSP.

ASSISTANT: Wait for a minute.

USER: Sure, take your own time.

ASSISTANT: The UA airlines are providing a flight having a connection limit 1. Can I proceed with the booking?

USER: Please proceed.

ASSISTANT: Yes, your ticket is reserved with the flight number 1028.

USER: Thank you for helping me.

ASSISTANT: Thank for reaching us.