You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I want to reserve my ticket from BOS to HOU, can you please help me?

ASSISTANT: Let me know your travelling dates.

USER: Sure, my dates of journey are from Jun, 08 to Jun, 10.

ASSISTANT: Do you have any preferences?

USER: Yes, I need a connecting flight.

ASSISTANT: Let me know your name.

USER: Sure, my name is Edward Hernandez.

ASSISTANT: Sorry, no flights found with your travelling dates.

USER: Ok, that's fine.

ASSISTANT: Thank you.

USER: Thank you for your service.