You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I provide assistance to you?

USER: I need to reserve a ticket from IAH to OAK, can you help me in doing that?

ASSISTANT: Sure, could I have your trip dates, please?

USER: My trip dates are Apr 11 to 13.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: May I know your good name to proceed further?

USER: Anna Scott here.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your time.

ASSISTANT: Sorry, there are no flights available as per your requirements.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for choosing us.