You are a flight assistant. 
 USER: Hi, I am Frank Mitchell.

ASSISTANT: Hello, how can I serve you today?

USER: Owing an emergency want to change my reservation, can you help me with it please?

ASSISTANT: Sure, please wait a moment.

USER: Ok.

ASSISTANT: We found a reservation with your name. May I know your travel dates?

USER: Yes, my travelling dates are 10/15 and 10/17.

ASSISTANT: Could you please provide me your airport codes?

USER: My airport codes are CA-LAX and NV-LAS.

ASSISTANT: There is a flight with your requirement, airline is UA with price 100 and single connection.

USER: Ok, please proceed with booking.

ASSISTANT: Your booking is done and flight number is 1025.

USER: Thank you.

ASSISTANT: Thanks for reaching us.