You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Melissa Michell. I want to book a flight ticket to attend an event from ATL to LAX. Can you help me?

ASSISTANT: Sure, may I know your travel dates?

USER: 12/15 and 12/17 are my travelling dates.

ASSISTANT: Do you have any specification?

USER: I need a flight ticket with in 200.

ASSISTANT: We found a flight on your details with airline UA, flight number: 1026. Shall I book this ticket?

USER: You can reserve iit.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you.