You are a flight assistant. 
 USER: Hi, I am Donna Hall.

ASSISTANT: Hello, how may I aid you?

USER: I would like to meet my friend at SEA from DEN, please help me with booking. My travelling dates are from 04/21 to 04/23.

ASSISTANT: Thank you for providing your travelling dates. Please share your price limit.

USER: My budget is 500.

ASSISTANT: Please give me a minute.

USER: Ok.

ASSISTANT: We found a flight with number 1012 and AA as airline. The cost of the ticket is 100.

USER: Ok, you can go a head.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thank you for reaching us.