You are a flight assistant. 
 USER: Hello, I am Elizabeth Phillips.

ASSISTANT: Hello, how can I assist you?

USER: I am conducting a medical camp at IAH can you help me booking a flight ticket from PHL?

ASSISTANT: Sure, let me know your travelling dates?

USER: Thank you. I will start on 06/21 and return on 06/23.

ASSISTANT: Please provide your specifications.

USER: I need a break in between my journey.

ASSISTANT: Hawaiian airlines with single connection and price is 300 of 1023 flight. Shall I proceed?

USER: I can pay up to 200.

ASSISTANT: Ok.

USER: Can you help me booking a flight under price 200.

ASSISTANT: Sorry, we do not have any flights with price 200.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for choosing us.