You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Nancy Davis here.

ASSISTANT: How can I assist you?

USER: Can you please book me a ticket from SEA to IAH?

ASSISTANT: Sure, can I know the travel dates please?

USER: My trip dates are May 24th and 26th.

ASSISTANT: Do you have any requirements?

USER: I need a single connecting flight.

ASSISTANT: There is a connecting flight in UA airline, can I book it?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been booked with flight number 1000.

USER: Thank you for the help.

ASSISTANT: Thank you for approaching us.