You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How can I aid you?

USER: Can you please help me in booking my flight ticket from LAS to PHL?

ASSISTANT: Sure, May I know your travelling dates?

USER: My planned travel dates are Jan 26-28.

ASSISTANT: Let me know your connection limit.

USER: I prefer a connecting flight.

ASSISTANT: Do you have any other preferences?

USER: I am looking for big branded airlines.

ASSISTANT: May I know your name?

USER: Myself David Brown.

ASSISTANT: You have a connecting flight 1005 in UA airlines and price 100, Shall I proceed?

USER: Ok, please go ahead.

ASSISTANT: Your ticket has been processed and it will be send to your Email-Id shortly.

USER: Thank you.

ASSISTANT: Thank you.