You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: My name is Catherine Phillips.

ASSISTANT: Ok, tell me your travelling details?

USER: I am planning a business trip from PHL to OAK, can you book a ticket?

ASSISTANT: Sure, may I know the dates of your journey?

USER: My travel dates are 04/24 and 04/26.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting.Your flight number is 1002 in UA airline. Can I proceed?

USER: Sure you may proceed booking.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for choosing us.