You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: My name is Samantha Phillips. Please help me to change my reservation due to health problem, can you help me?

ASSISTANT: Ok, please wait a minute.

USER: Sure, take your time.

ASSISTANT: I have found your reservation. May I know your alteration details?

USER: Ok, my itinerary dates are from 02/03 to 02/05.

ASSISTANT: Ok, can you please tell me your airport codes?

USER: My airport codes are EWR and DEN.

ASSISTANT: Ok, please wait a minute.

USER: Ok, carry on.

ASSISTANT: Thanks for waiting, we found a flight with your provided information in Hawaiian airline with 1 connection and the fare is 100. Shall I confirm your ticket with this airline?

USER: That's ok, please book my ticket.

ASSISTANT: Your ticket is booked in 1001 flight.

USER: Thank you for your help.

ASSISTANT: Most welcome.