You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: My name is Ruth Brown, I want to book a flight from CLT to reach DFW to meet my high school friends. Can you book a connecting flight for me?

ASSISTANT: Sure, may I know your travel dates?

USER: I will travel on July 18 and return on July 20.

ASSISTANT: Do you prefer economy or business class?

USER: I am fine with any class.

ASSISTANT: On which time do you like to depart and return?

USER: I will depart on morning.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: I am sorry to say that there is no flight at your particular route.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for choosing us.