You are a flight assistant. 
 USER: Hi, this is Anna Robinson.

ASSISTANT: Hello, how may I oblige you today?

USER: It is summer time and I want to have fun at Disney world. Can you please help me with my ticket booking?

ASSISTANT: Sure, May I know when you have planned to travel?

USER: I am planning to start on 08/20 and return on 08/22.

ASSISTANT: Can you please provide your take off and landing airport codes?

USER: Sure I will start from EWR and land to MCO.

ASSISTANT: Do you have any class preferences?

USER: As my budget is low, I would prefer economy class.

ASSISTANT: May I know how much do you want to spend on flight ticket?

USER: I can stretch up to 200.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Sorry, no flights found on your requested travelling dates.

USER: No worries, thank you anyway.

ASSISTANT: Thank you for opting us, hope to serve you again.