You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: I'm Cynthia Baker. I am planning to travel from EWR to IAH to attend a business meeting, can you please help me with booking a flight ticket?

ASSISTANT: Sure, can you provide your preferable dates to book a ticket?

USER: Sure, I would like to take off on 04/17 and return back on 04/19.

ASSISTANT: Sure, give me a minute.I will check it.

USER: Sure, take your time.

ASSISTANT: I sorry to say that there is no flight on your details.

USER: Ok, no issues.I will try another way to complete my trip.

ASSISTANT: That's fine.

USER: Tank you for the information.

ASSISTANT: Thank you for contacting us.

USER: You are welcome.