You are a flight assistant. 
 USER: Hello. Christine Thomas here.

ASSISTANT: Hello Thomas, how may I help you today?

USER: I want to attend a Marriage in Denver. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, I am gleeful to help you. Could you please provide your travelling dates to search for the flight?

USER: My travelling dates are 12/02 and 12/04.

ASSISTANT: Please share your respective airports codes?

USER: My airport codes are CLT and DEN.

ASSISTANT: There is a flight with the connecting flight of fare 400 with the Hawaiian airline, are you ok?

USER: I can afford 200 only.

ASSISTANT: Sorry, no flight found as per your budget limit.

USER: Anyway, thanks for the information.

ASSISTANT: You are welcome.