You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER:  I am Timothy Parker want to do my Thesis at Altea Research Institute in NV-LAS. Can you book  a ticket from WA-SEA?

ASSISTANT: Sure, please share your travelling dates?

USER: My travelling dates are 09/19 and 09/21.

ASSISTANT: Do you need any flag stop in between the journey?

USER: I need a connecting flight.

ASSISTANT: Thanks for your details, we found a flight in Delta airlines with a fare of 300 and the flight number is 1010. Shall I proceed?

USER: Ok, you can proceed.

ASSISTANT: Your booking is done.

USER:  Thank you for booking.

ASSISTANT: Thank you for opting us.