You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Amanda Robinson.

ASSISTANT: What can I do for you now?

USER: I want to attend my friend reception in Casewell House at Austin, TX - AUS.

ASSISTANT: Ok.

USER: Will you help me to book a connecting flight?

ASSISTANT: When you are going to start your journey ?

USER: My journey start on 06/30 and return on 07/02.

ASSISTANT: Your source point please?

USER: My source point is Philadelphia, PA - PHL.

ASSISTANT: How much can you afford for your journey?

USER: I can spend up to 5000.

ASSISTANT: Give a minute.

USER: Sure.

ASSISTANT: Unfortunately, no flights were  there in your route.

USER: Ok, no problem.

ASSISTANT: Thank you for choosing us.

USER: Thank you.