You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I am Ryan Johnson, can you help me to search a flight on 12/08?

ASSISTANT: Sure, can I have your locations?

USER: My friends planned a party at OAK, so please book a flight from PHL.

ASSISTANT: Will you please mention your return journey date?

USER: I am planning to return on 12/10.

ASSISTANT: Do you have any other requirements?

USER: Yes, I want 1 connection limit.

ASSISTANT: There is a flight exactly matched with you criteria, on Delta airline and price is 300. Shall I proceed?

USER: Please do not proceed, my price limit is 200. Thank you for your help for searching.

ASSISTANT: Sorry for the inconvenience, thank you for reaching us.