You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: Please reserve me a flight ticket from SFO to BOS.

ASSISTANT: Sure, we are here to help you. Can you share me your travelling dates?

USER: My preferable journey dates are Feb 05 and Feb 07.

ASSISTANT: May I know your name?

USER: My name is Matthew Collins.

ASSISTANT: Do you have any other specifications?

USER: I would like to depart and arrival in the morning time.

ASSISTANT: Ok, wait for some time.

USER: Sure, please ensure that I would like to prefer normal cost airline.

ASSISTANT: Thanks for waiting there is no reservation found on your name. Thanks for approaching us.