You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you help me in booking my flight ticket from July 1st and July 3rd?

ASSISTANT: Sure, may I know your airport codes?

USER: My airport codes will be IAD to OAK.

ASSISTANT: Please share me your name.

USER: I am Mark Clark.

ASSISTANT: Do you have any Specifications?

USER: I prefer a economy class.

ASSISTANT: We found a economy class flight on your details with Hawaiian Airlines, flight number: 1014.

USER: You can proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you so much for choosing us.