You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I am Elizabeth Moore here, I want to reserve my ticket from DFW to SEA, can you please help me?

ASSISTANT: Sure, can I know the travel dates please?

USER: Sure, my preferable dates of journey is from 11/04 to 11/06. Please make sure that the price limit is 500.

ASSISTANT: Ok, wait a moment please.

USER: Sure, take your own time.

ASSISTANT: There is a flight in UA airline with price 100, can I book it?

USER: Ok, please book it.

ASSISTANT: Your ticket has been booked with flight number 1021.

USER: Thank you for your help in booking my ticket.

ASSISTANT: Thank you for approaching us.