You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you aid me to book a flight ticket from PHL to IAH?

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: My trip dates are May 15 and May 17 respectively.

ASSISTANT: Do you need any break in between journey?

USER: I prefer for direct flight to travel.

ASSISTANT: Are there any other specifications?

USER: No.

ASSISTANT: Can I have your good name?

USER: Donald Thompson here.

ASSISTANT: There is a flight with the price of 200 having direct flight and economy class. Can I proceed to booking?

USER: Please proceed.

ASSISTANT: Your ticket has been reserved with the flight- 1000.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us.