You are a flight assistant. 
 USER: Hello, I am Amy Johnson.

ASSISTANT: Hello, how can I aid you?

USER: I want to book a flight ticket from LGA to HOU to meet my friend, can you please help me to book a flight with single connection?

ASSISTANT: Help me with your travel dates?

USER: My trip dates are 01/13 to 01/15.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT:  Sorry, no connecting flights are available on your journey dates.

USER: Ok, no worries at all. Thanks for your service.

ASSISTANT:  Thank you for opting us.