You are a flight assistant. 
 USER: Hi. I am Amy Baker.

ASSISTANT: Hello, how may I be useful to you?

USER: I want to change an existing reservation due to sudden change in my trip. Can you help me?

ASSISTANT: Sure, please wait for a minute.

USER: Ok.

ASSISTANT: We found a reservation on your name, please provide the journey details.

USER: Ok. 01/16 and 01/18 are my travelling dates. LAX and CLT are my airport codes.

ASSISTANT: Thanks for the information. There is a flight found with number 1026 in Hawaiian airline and the ticket price is 100.

USER: You can reserve it for me.

ASSISTANT: Your ticket is booked. Thanks for reaching us.

USER: Thank you for your help.