You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Donna Johnson.

ASSISTANT: How may I abet you today?

USER: Can you please help me to reserve a flight ticket from Oakland to Chicago?

ASSISTANT: Sure, may I know your travelling airport codes?

USER: Thank you. I am willing to travel from the airport OAK to ORD.

ASSISTANT: May I know your travelling dates?

USER: I want to travel on the dates of AUG-12 and AUG-14.

ASSISTANT: Please wait a moment.

USER: Ok, please make sure that the connection limit is 1.

ASSISTANT: There is a flight with single connection and the price is 300 in UA airlines, can I proceed with the reservation?

USER: I am ok with this flight, please reserve the flight ticket for me.

ASSISTANT: Your ticket has been reserved with the flight number 1025.

USER: Thank you so much for your help in reserving a flight ticket.

ASSISTANT: Thank you for booking flight ticket with our service.

USER: You are welcome.