You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I am Carol Moore. Would you help in booking a ticket under the price limit of 200?

ASSISTANT: Sure, please let me know your travelling dates?

USER: The meeting is to be on 07/26 and after completion of this, I will return on 07/28.

ASSISTANT: Ok, may I know your airport codes?

USER: To reach the PHL, I have to leave the New York, EWR.

ASSISTANT: Ok, please hold on a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, no flights found with your requested details.

USER: No worries at all. Thank you for your quick response.

ASSISTANT: Thank you for opting us.