You are a flight assistant. 
 USER: Hello. Daniel Taylor here.

ASSISTANT: Hello, how may I help you at this moment?

USER: I want to attend my sister's wedding anniversary, can you please search a flight with single connection?

ASSISTANT: Can I have your journey dates?

USER: My trip dates are from 09/25 till 09/27.

ASSISTANT: Please send your nearby airport codes.

USER: I want to fly from IAH to LGA.

ASSISTANT: Please wait for a moment.

USER: Ok, take your time.

ASSISTANT: Sorry, there is no flights available on your mentioned dates.

USER: It's ok, thank you for your information.

ASSISTANT: Thank you for reaching us. Have a nice day.