You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Justin Clark.

ASSISTANT: How can I assist you today?

USER: I want to book a ticket from IAH to BOS to attend seminar, can you help me in booking?

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

USER: I am departing on Nov 06 and return on Nov 08.

ASSISTANT: May I know your class preference please?

USER: I am ok with any class.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: American airlines is providing a flight on that route with ticket fare of 300, shall I proceed for booking?

USER: Please proceed for booking.

ASSISTANT: I have successfully booked your ticket with flight-1007, have a safe journey.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.