You are a flight assistant. 
 USER: Hi. I am James Thomas.

ASSISTANT: Hello, how may I help you?

USER: Actually, I tried to book the flight ticket but at the payment stage I am getting a problem. Can you please help me to book a flight ticket from DTW to OAK?

ASSISTANT: Sure, may I know your trip dates?

USER: My journey dates are Jul 22 to Jul 24.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting and we have found a flight in economy class with 1 connection in Frontier airlines and the fare of your flight will be 100. Do you like me to proceed your booking with this flight?

USER: You can book it.

ASSISTANT: Ok, your ticket is booked with the flight number 1011.

USER: Thank you.

ASSISTANT: Most welcome.