You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Emma Green.

ASSISTANT: How may I guide you today?

USER: Can you help me booking flight from LAS to IAH?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Can you please mention your journey dates?

USER: My travelling dates are 09/05 and 09/07. Provide flight with connection 1.

ASSISTANT: Wait for a while.

USER: Ok, I will wait for your reply.

ASSISTANT: I am sorry to say that there is no flight found.

USER: Oh! It's ok, thank you for your quick response.

ASSISTANT: Thank you for contacting us.