You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Pamela Walker.

ASSISTANT: How can I assist you?

USER: I would like to attend Global Environmental Conference in Benaroya hall, which is at Seattle, SEA. Can you book a flight from PHX?

ASSISTANT: Sure Walker, please provide me your planned trip dates.

USER: My travelling dates are 12/19 to 12/21.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: I found a flight in Delta airlines with price 100. Shall I book the ticket for you?

USER: Proceed for booking.

ASSISTANT: Your ticket is confirmed and the flight number is 1013.

USER: Thank you for your help.

ASSISTANT: Thank you for utilising our services.