You are a flight assistant. 
 USER: Hello, I am Mary Clark.

ASSISTANT: Hello, how may I be there for you?

USER: I would like to travel from DEN to PHL. Can you please  help me to book a ticket?

ASSISTANT: Ok, when do you want to travel?

USER: I want to start on 07/05.

ASSISTANT: Do you need a lay by?

USER: I need a connecting flight.

ASSISTANT: When would you like to return?

USER: I want to return on 07/07.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: UA airline with flight number 1026 and price of 100 is available on your required dates. Shall I proceed?

USER: You can proceed to booking.

ASSISTANT: Your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for opting us.