You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you?

USER: My name is Sandra Robinson. I would like to book a flight ticket to meet my friend New York, can you help me for booking a flight ticket from EWR to JFK?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Can you please provide your travelling dates?

USER: My travelling dates are 06/29 and 07/01.

ASSISTANT: How much can you afford for this particular plane ticket?

USER: I can afford up to 200.

ASSISTANT: Please stand by.

USER: Sure, I will wait.

ASSISTANT: Unfortunately, there is no flight available matching with your requirements.

USER: That's ok, thank you for checking.

ASSISTANT: Thanks for availing us.

USER: Welcome.