You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: I want to book a flight from SFO to IAH. Can you check the flight availability on that route?

ASSISTANT: Sure, may I know your travelling dates?

USER: My planned travel dates are 06/12 and 06/14.

ASSISTANT: Any other specifications needed?

USER: I want a flight with single connection.

ASSISTANT: On which name shall I reserve flight ticket?

USER: Sure, Shirley Perez here.

ASSISTANT: Sorry, there are no flights available on your travelling dates.

USER: No issues, thank you for the information.

ASSISTANT: Thank you for reaching our service,.