You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Can you help me to book a flight ticket from CLT to PHL?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I planned my trip on the dates July 27 and 29 respectively.

ASSISTANT: May I know your connection limit?

USER: I am looking for a connecting flight. And make sure my return journey should be evening.

ASSISTANT: Do you have any other requirements?

USER: No, other requirements.

ASSISTANT: May I know your name please?

USER: Myself Timothy Martin.

ASSISTANT: We found a Frontier airline, flight number: 1026, return time: 21:00 hours, price: 200 with one connection.

USER: Please proceed.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.