You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I have a plan to meet my friend's in Philadelphia. Can you help me for booking a flight ticket?

ASSISTANT: Sure, may I know your trip dates?

USER: My trip dates are 04/04 and 04/06.

ASSISTANT: Can you please share your airport codes?

USER: My airport codes are PHX and PHL.

ASSISTANT: To proceed further, could you please tell me your name?

USER: My name is Jacob Baker.

ASSISTANT: Here, I found a flight for you with 1 connection and fare is 300. Can I proceed?

USER: I can afford only 200 for my journey.

ASSISTANT: Sorry, I did not find any flight with your budget.

USER: Ok, don't proceed for booking. Thank you for checking.

ASSISTANT: Welcome.