You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you help me in booking a flight ticket from DCA to PHL?

ASSISTANT: Sure, please help me with your planned travel dates.

USER: I want to travel on 04/26, and return on 04/28.

ASSISTANT: Can I have your name please?

USER: I am Betty Adams.

ASSISTANT: May I know your airline preference?

USER: I prefer for normal cost airline.

ASSISTANT: Can I have your connection preference?

USER: Yes, i need a single connection.

ASSISTANT: Do you have any other specifications?

USER: I want to return in the afternoon time.

ASSISTANT: Betty Adams, no flights has been found on your preferences.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for approaching us.