You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Patricia Evans.

ASSISTANT: How can I assist you today?

USER: I am planning to visit Dallas, DFW. Can you please book me the ticket from Philadelphia, PHL?

ASSISTANT: Sure, I can help you with that. May I know your planned travel dates please?

USER: My preferable journey dates are from 06/03 to 06/05.

ASSISTANT: Ok, please wait for a while.

USER: Sure, I will wait for your response.

ASSISTANT: AA airlines is providing a flight on that route with ticket fare of 200, shall I proceed for booking?

USER: Please book my ticket with this airlines.

ASSISTANT: I have successfully booked your ticket with flight-1021, have a safe journey.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for choosing us.