You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I succour you?

USER: I am Ashley Williams. Please book me a ticket with the fare of 1000 to meet my friends.

ASSISTANT: Sure, may I know know your depart and journey dates?

USER: My travel dates are from 02/25 to 02/27.

ASSISTANT: Can I know your source and destination points?

USER: My airport codes are from PHL to LAS.

ASSISTANT: Hold on a minute.

USER: Ok.

ASSISTANT: We found a flight on AA airline, flight number as 1017 with the fare of 100. Shall I book a ticket?

USER: Please book this ticket.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.