You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I am very interested in trekking, can you please book a ticket for me?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: Thank you and my trip dates are 03/31 and arrival back to my region on 04/02.

ASSISTANT: Can I have your nearby airport codes?

USER: Sure, my airport codes are from SFO to OAK.

ASSISTANT: May I know the name on which you would like to book the ticket?

USER: Sure, you can book the ticket on Eric Evans name.

ASSISTANT: There is a connecting flight available with Delta airline, shall I book it?

USER: Yes, you can book the ticket.

ASSISTANT: Your booking is done with the flight number 1008. Happy journey.

USER: Thank you for your service.

ASSISTANT: You are welcome, have a nice day.

USER: Welcome.