You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: This is Catherine Smith, please reserve me a flight ticket from JFK to SFO.

ASSISTANT: Sure, let me know your travelling dates.

USER: I am travelling from May 26 to May 28.

ASSISTANT: Do you need any halt in between your journey?

USER: I am comfortable with any flight.

ASSISTANT: Do you have any other requirements?

USER: I want to prefer normal cost airline.

ASSISTANT: We found a connecting flight with UA airline and flight number is 1026. Shall I proceed for booking?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed with economy class.

USER: Thank you.

ASSISTANT: Thank you for choosing us.