You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I serve you?

USER: I am Elizabeth Campbell. I am planning to attend a business meeting at Oakland OAK, can you help me with booking a connecting flight?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: Please let me know your origin airport code.

USER: My origin airport code is Seattle SEA.

ASSISTANT: Kindly assign your preferred dates of travelling.

USER: My planned journey dates are 03/22 to 03/24.

ASSISTANT: We found a Spirit airline, flight number:1011 and the price is 200.

USER: Yes, you can proceed with booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching us.