You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you today?

USER:  As I am a scientist, I want to attend science festival with my students at Seattle. Can you do the reservation?

ASSISTANT: Sure, may I know your good name please?

USER: Thomas Lee here.

ASSISTANT: Ok, please share your journey dates.

USER: My travel dates are 02/04 and 02/06.

ASSISTANT: Ok, can you please assign your journey airport codes?

USER: My airport codes are HOU-SEA.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for your time, we found a flight in 1029 Hawaiian airline with a fare of 400. Can I proceed?

USER: Do not proceed. I need flight with the price of 200.

ASSISTANT: Ok. Thank you for choosing us.

USER: Thank you.

ASSISTANT: Have a nice day.