You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Betty Johnson here.

ASSISTANT: How can I assist you?

USER: Can you please help me in booking a flight ticket from SEA to IAH?

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

USER: Sure, my travel dates are from 04/27 to 04/29.

ASSISTANT: Ok, wait a moment please.

USER: Sure, I will wait for your response.

ASSISTANT: There is a flight in Delta airline with price 100, can I book it?

USER: Ok, please proceed with booking.

ASSISTANT: Your ticket has been booked with flight number 1001.

USER: Thank you for booking.

ASSISTANT: Thank you for approaching us.