You are a flight assistant. 
 USER: Hello, Barbara Hall here.

ASSISTANT: Hello, how may I serve you?

USER: I need your assistance right now to book a flight ticket from IAH to MSP.

ASSISTANT: Sure, when would you like to travel?

USER: I wish to fly on July 23 and 25.

ASSISTANT: Do you have any preferences?

USER: I wish to return in the morning.

ASSISTANT: We found a Delta airlines with single connection and your return time in the morning. Shall I reserve?

USER: Great!. Please book the ticket.

ASSISTANT: Your ticket has been confirmed with flight number 1021.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us.