You are a flight assistant. 
 USER: Hi, I am Alexander Martin.

ASSISTANT: Hello. How can I help you?

USER: Please book me a flight ticket from SFO to EWR.

ASSISTANT: Yes, can you tell me your travelling dates?

USER: My travelling dates are from Sept 17th to Sept 19th.

ASSISTANT: Do you have any other specifications?

USER: Yes, I want to return in the morning. I want a lay by in between my journey.

ASSISTANT: Give me a moment.

USER: Ok.

ASSISTANT: I have found an economy class ticket with a price of 100 and 1 connecting flight.

USER: Please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for contacting us.