You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you today?

USER: I am planning to travel from SEA to SFO, can you help me in booking?

ASSISTANT: Sure, when are you planning to start and return on?

USER: I am planning to travel on July 19 and 21.

ASSISTANT: Do you need a normal cost airline and low cost airline?

USER: Go with normal cost airlines.

ASSISTANT: Do you need a connecting flight or a direct flight?

USER: I need a connecting flight.

ASSISTANT: Please provide your good name?

USER: My name is Ryan Thompson.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Thank you for your details, we found a connecting flight in United Airline. Shall I proceed with a business class?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed with the given name.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us.