You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I am Robert Gonzalez. Would it be possible to change my reservation, which I have done with my name?

ASSISTANT: Sure, we are here to help you. Please wait for a while.

USER: Thank you, take your time.

ASSISTANT: We found a reservation with your name, please provide your new journey dates.

USER: My travelling dates are 07/21 and 07/23.

ASSISTANT: Kindly assign your airport codes?

USER: My airport codes are EWR and CLT.

ASSISTANT: Ok, please be on hold for some time.

USER: Ok.

ASSISTANT: We found a connecting flight with Frontier airlines, flight number 1008, and the fare of 100 in economy class. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for opting us.