You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Amanda Moore want to attend a workshop at Philadelphia, can you book a ticket within the fare of 500?

ASSISTANT: Sure, could you please tell us your travel dates?

USER: Yes, my travelling dates will be 09/16 and 09/18.

ASSISTANT: Ok, may I know your source and destination airport codes?

USER: Sure, I want to fly from IAH to PHL.

ASSISTANT: Thank you, please wait for a while.

USER: Ok.

ASSISTANT: Flight-1014 of Southwest airlines is available with 1 connection. Shall I book the ticket?

USER: Yes, you can proceed with this airline.

ASSISTANT: Your ticket is booked successfully and happy journey.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.