You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I amend you the day?

USER: I would like to book a flight ticket with the name Melissa Martinez from PA-PHL to NV-LAS. Help me with booking a connecting flight.

ASSISTANT: Sure, I am here to help you. When would you like to travel?

USER: I will prefer to travel from 06/05 to 06/07.

ASSISTANT: Is there any price limit?

USER: I want to travel with low budget 200.

ASSISTANT: Ok, please hold on.

USER: Sure.

ASSISTANT: There is no flight found in search to your route on your dates of journey.

USER: Fine, thanks for the information.

ASSISTANT: Thank you for approaching us.