You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,. How can I assist you?

USER: I am Emma Smith. I want to attend a Memorial services of my grandfather's, which is going to be held at HOU on 03/11.

ASSISTANT: Ok, can you please provide me your source code and return day?

USER: Ok. And I need to start  from SFO on 03/09.

ASSISTANT: Ok, please wait I will check the preferences and get back to you?

USER: Sure.

ASSISTANT: Thank you for being waiting. We found a flight in your preferences, here are the details flight_number:1022, airline: Southwest and with single connection. Shall I proceed with the booking?

USER: Ok, you can proceed with this details to book a flight ticket.

ASSISTANT: Ok. Your ticket has been processed.

USER: Thanks a lot  for your service.

ASSISTANT: Thank you for choosing us. Have a safe journey.