You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: There is a musical concert going on at Boston. Can you find any flights available?

ASSISTANT: Sure, may I know your name please?

USER: My name is David Thompson.

ASSISTANT: May I know your airport codes?

USER: The airport codes are SEA and BOS.

ASSISTANT: Ok, can you provide your trip dates please?

USER: I am planning to travel on dates 11/03 and 11/05.

ASSISTANT: There is a flight for you with 1026 in UA airline.

USER: May I know the price of the ticket?

ASSISTANT: Sure, the price is of 100.

USER: Please book the ticket for me.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.