You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hi,. How may help you?

USER: Can you please help me for booking a ticket from TX-IAH to PA-PHL?

ASSISTANT: Sure  please provide me dates & your name .

USER: The travelling dates are from 05/02 to 05/04. My name is Anna Johnson.

ASSISTANT: Do you have any other requirements Mr Anna Johnson.

USER: Yes, price should not be more than 500 and the connections limit should be 1.

ASSISTANT: There is a flight matching your requirements. Can I book your flight .

USER: Yes, proceed.

ASSISTANT: Your booking was confirmed . Thank you . Have a safe journey .