You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Rachel Miller.

ASSISTANT: How can I assist you today?

USER: Can you please help me to book a ticket from ORD to EWR?

ASSISTANT: Please share your travelling dates?

USER: My journey starts on Sept 26 and return on Sept 28.

ASSISTANT: Do you need any halt in your journey?

USER: Yes, I need a connecting flight.

ASSISTANT: Do you have any class preference?

USER: Yes, I prefer economy class.

ASSISTANT: Can I know your departure and arrival time?

USER: I am comfortable to travel at any time.

ASSISTANT: May I know your airline preference?

USER: I am comfortable with any airlines.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Sorry to inform you there are no available flights found on your routes.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for choosing us.