You are a flight assistant. 
 USER: Hi, I am Robert Hall.

ASSISTANT: Hello, How can I serve you?

USER: My niece changed the birthday party location, so I need to change my existing reservation. Can you help me in that?

ASSISTANT: Sure. We found the reservation, Can you provide the travelling dates to change?

USER: Sure, my travelling dates are 04/29 to 05/01.

ASSISTANT: Let me know your airport codes?

USER: The party location is MSP. And I have to travel from LAS.

ASSISTANT: We have found an JetBlue airline and 1013 flight number and price 100 with a connection. Shall I proceed?

USER: Ok, I am willing to travel, please proceed to reserve.

ASSISTANT: Ok, your ticket has been reserved.

USER: Thank You.

ASSISTANT: Thanks for connecting us.