You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I support you for today?

USER: I am Steven Thomas, can you help me to find a flight from IAD?

ASSISTANT: Sure, what dates would you like me to book this ticket for?

USER: I would like to travel on 11/27 and 11/29.

ASSISTANT: Ok, may I know your price limit to book a ticket?

USER: My budget for this trip is 200.

ASSISTANT: Ok, please let me know your destination cod to proceed further.

USER: I would like to attend my college event at LGA.

ASSISTANT: Sorry, no flight were found on your dates.

USER: That's fine, I will check with other agency.

ASSISTANT: Thanks for choosing us. Have a pleasant day!.

USER: Thank you for your time.