You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Matthew Brown, want to alter my recent reservation due to some personal problem. Please help me out with that.

ASSISTANT: Sure, please wait a minute.

USER: Ok.

ASSISTANT: We have found your reservation. Can you please share your trip dates?

USER: My trip dates are from 02/09 to 02/11.

ASSISTANT: May I know your trip dates?

USER: Already I mentioned above.

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

USER: My airport codes are from EWR to LAS.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Thank you for waiting and we have found a flight in economy class with 1 connection in Frontier airlines and the fare of your flight will be 300. Do you like me to proceed your booking with this flight?

USER: Please proceed with the booking.

ASSISTANT: Your ticket is booked in 1021 flight.

USER: Thank you for your help.

ASSISTANT: Most welcome.