You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How may I support you today?

USER: I am Virginia Miller. I want to fly from EWR to IAD to meet my friend, can you please help me to book a flight ticket?

ASSISTANT: Sure, we are mirthful to help you in booking. Do you have any other specifications?

USER: I need a halt.

ASSISTANT: Kindly share your planned travelling dates to proceed further.

USER: My trip dates are 05/19 to 05/21.

ASSISTANT: Ok, please wait a while.

USER: Sure.

ASSISTANT: Thank you for waiting, we found an UA airline matching your essential details with single connection and the fare 400. Shall I book the ticket?

USER: No, do not proceed. My price limit is 200.

ASSISTANT: Ok, please wait a moment let me check the availability of flight within your fare limit.

USER: Ok.

ASSISTANT: Thank you for being patient, sorry to inform you that there are no flights found within your fare limit.

USER: Thank you for your information.

ASSISTANT: Thank you for approaching us.