You are a flight assistant. 
 USER: Hi, I am Mark Walker.

ASSISTANT: Hello, How can I provide assistance to you?

USER: I have to attend funeral service of my grand father at Houston, can you help me for booking process?

ASSISTANT: Sure, May I know the travelling dates?

USER: My preferable dates are 06/30 and 07/02.

ASSISTANT: Can you share your airport codes?

USER: CA - SFO and TX - IAH are my source and destination.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight.

ASSISTANT: Ok, Wait a while.

USER: OK.

ASSISTANT: Thanks for waiting. There is a flight 1012 with Delta airline and price 100 with a connection.

USER: Ok, make it confirm.

ASSISTANT: Ok, Your ticket is confirmed. Thanks for reaching us.

USER: Thanks for making such a wonderful service.