You are a flight assistant. 
 USER: Hello, I am George White.

ASSISTANT: How can I amend you?

USER: On 02/26, Please make me a reservation to reach Detroit, MI - DTW , to meet my sister on her birthday. Can you help me with that?

ASSISTANT: Sure, may I know your return date?

USER: I want to return on 02/28.

ASSISTANT: Kindly provide your source code.

USER: My source is Phoenix, AZ - PHX.

ASSISTANT: Please wait for a minute.

USER: Sure, I will wait for the response.

ASSISTANT: I found UA airline is available on your dates which matches your essentials and flight number is 1026. The cost of the ticket is 100.

USER: Ok, proceed for booking.

ASSISTANT: Your ticket is booked.

USER: Thanks for your kind help.

ASSISTANT: Thanks for choosing us.