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

ASSISTANT: Hello, how may I help you?

USER: I am planning for a round trip with my friends in TX - IAH, can you please help me with booking a connecting flight ticket?

ASSISTANT: Sure, please share your journey dates?

USER: My travelling dates are from 07/25 to 07/27.

ASSISTANT: Do you have any specifications?

USER: My price limit is 5000.

ASSISTANT: Sorry, no flights found on your given details.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for choosing us.