You are a flight assistant. 
 USER: Hello. My name is John Williams.

ASSISTANT: Hello John. What can I do for you?

USER: I have a interview to attend in Space Center Houston, could you help me in booking the reservation?

ASSISTANT: Sure, may I know your departure and arrival dates?

USER: The dates of travel are from OAK to IAH. The dates are 07/01 to 07/03. Please make sure the connection is 1.

ASSISTANT: Ok, please give me a minute so that I can check the availability of flight for you. Sorry, there are no flights available with 1 connection.

USER: That's ok. Thank you for your time.

ASSISTANT: Thank you, have a great day.