You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How may I help you?

USER: Myself Emily Martin. I want to travel from DEN to IAH, please help me with booking.

ASSISTANT: Sure. May I know your travelling dates?

USER: Sure, my journey dates are 03/23 and 03/25.

ASSISTANT: Any specifications?

USER: Yes, I need a single connection flight.

ASSISTANT: I'm sorry, no flights are available.

USER: Ok, I will search another way to reach. Thank you.

ASSISTANT: Thanks.